A few questions...

What's the difference between having a heterosexual person having sexual attraction to someone of the same sex or a homosexual/bisexual/pansexual person having sexual attraction towards the same sex?

Feeling depressed by the thought of falling in love with someone from the opposite sex does equate with not feeling any attraction for someone from the opposite sex?

Is it normal to feel condemned when thinking about having a relationship with the opposite sex?

Just in case you're thinking about replying without answering specifically those questions... No, I haven't been sexually abused by the members of the opposite sex or had bad relationships with them. I ended up by having some bad opinions about them(possibly because of how I was taught) and I'm wondering if I am straight/bisexual, but in denial or if I am really into girls. I may not get the answer right away, but who knows if someone gives me a hint to how figure things out.

No, it does not. You might be feeling depressed because of the particular attributes of the object of your love and not the general characteristics of the opposite sex. That is one thing. Another thing is that when you are falling in love, you usually do feel attraction, so it cannot be said that you do not feel any attraction for someone from the opposite sex.

No. It is not normal. Think about it - if everybody who was thinking about having a relationship with the opposite sex felt condemned, a lot of such people would not enter into relationships with the opposite sex - the humankind would then cease to exist in a few generations or so.

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Your writing is a bit labored, probably because you are writing in English and not Portuguese. What you wrote appears strange, but it could be just because of the language barrier. Maybe if you give some examples - rather than asking very general questions - we'd be able to see your situation more concretely and in detail and provide better help.

Okay. Sorry, I should use the google translator more often...

You need examples to understand better what's going on with me, right? I'll give you one example to represent each question I made. I hope it don't end up by getting even more confusing.

1. We have a girl, not a child, but an young teen that never had a best friend before. She had a few friends that would talk to her once in a while, but she never had this special friend that she could trust all her secrets and stay by her side whenever she needed. One day, that friend came. A friendship was formed and she was very happy. After quite some time, she began to notice something: she was falling in love with her friend and his friend happened to be a girl too. It makes her feel very confused. When she watched those movies, played those video games, the girls were never the ones that caught her attention. The guys did. What is that supposed to mean? That she is straight, lesbian or bisexual?

2. This same girl never had any problem with the gender or he future partner, but as the time goes by, some strange aversion to have any kind of romantic and/or sexual relationship with boys. It was unexpected because she always used to think some guys were handsome and all. How could this change like that out of a sudden? She tried to avoid thinking of boys that way. Decided to let clear that she doesn't want any of them to be her boyfriend. She was even being rude with them(not sure if she really wanted to be like that)! The idea of having a boyfriend doesn't sound so pleasant anymore, never was.

3. This is when she begins to wonder if she wasn't just straight, but in denial. Many people say that this is just a phase. What if this is not her true sexuality? Is she going to turn straight when adulthood come to her? Why does the thought of being attracted to the opposite sex makes she feel so sad? Was it because she really doesn't want anything with boys or are those misandristic(does that word even exist?) views becoming stronger?

There have been many similar posts on this forum. If you spend some time - hours, not minutes - finding them and reading them, you will see that your situation is not unique and that many people have been in your shoes. Hopefully that would help. Another thing is that you will need to experience your feelings without judgment and without trying to alter them or suppress them in order to actually see what they are and where they lead you. In other words, as long as you have a preconceived agenda, your views would be skewed by it. If you allow yourself whatever feelings you experience, without judgment, then you will actually learn something about yourself and those feelings.

1) in my opinion, there isn't a difference. think of it this way: who someone is attracted to isn't based on some abstract, set-in-stone "sexuality" box we get sorted into at birth. our "orientation" is a word we pick that describes our experiences. for most people, these words are at at best an approximation. the only difference between a heterosexual man who occasionally finds another man attractive and a bisexual man who is primarily into women is that the first man calls & thinks of himself as straight, while the second man doesn't. it's up to you what words you want to use for yourself.

2) it's very possible for someone's attraction to change over time - I used to want to date boys a lot, but now the thought of that is pretty unpleasant for me. I don't know if it's relevant here, but romantic interest and sexual attraction don't always have to go together, you can be attracted to boys but not want to date them, and there are lots of reasons someone could not want to date guys (all of which are valid). and being attracted to someone - or to a whole gender - doesn't mean you *have* to date them.

3) if the thought of dating someone makes you sad, that's a big warning sign something is wrong, and it's not good to ignore that feeling or hope it goes away.

so what if she "turns straight" when she's older? that doesn't change how she feels *now*. if she wants to date men in the future there's nothing stopping her from doing that..... in the future. it's ok to change. it's totally ok to think one thing and realize you were wrong.

you have feelings for a reason. they are trying to tell you something. it something seems wrong for you, it's probably wrong for you. if it seems right, it's probably right! i wouldn't worry too much about being "in denial": if you want to date a girl, then go ahead and do it. if it turns out you're not actually into her, what's the worst that could happen? you have a bad date? you turn out not attracted to her? that happens all the time.

it doesn't matter what your "real" sexuality is. just do what feels right.