What now???

I'm not sure if this is strictly sexual (I really think it isn't) but it involves sexuality so this is as good a forum as any...
What could possibly be the problem with someone who isn't that turned on by their gf anymore? It makes no sense at all. Nothing has changed. I can look at it objectively and know that nothing has changed physically or emotionally. She is very attractive. She is very sexy... very sensual. Very intelligent, sense of humor, sweet and caring. Well groomed... clean... smells nice
When one goes through so many years of fighting MI and perseveres and something really nice happens... and it just... I don't know.
It has to be some kind of psychological issue right? Maybe I really don't deserve anything good in my life.

Doesn't necessarily have to be something psychological. Medications, testosterone and other hormonal levels, etc. can affect libido. But don't jump to conclusions. Maybe you are just in a temporary slump. From the way you describe her, I am sure she knows how you feel about her. Can you allow the strength of your relationship carry you for a while and not fret about this?

Thank you... that was a very thoughtful response. I guess I'm not very good at talking about my problems and I'm also a little afraid she might see this. The problem is... it's only her. I am still very much turned on by others.
That's why I think it's some kind of psyche thing.

One thing has changed - time has passed. You don't talk about how long you've been together, but the actual time period doesn't matter. Relationships change as they mature, and it is natural. There's a reason why an old married guy like myself isn't chasing the wife around the house all the time. It doesn't have to mean something is wrong.

Of course, Little Lulu's observations are also valid - there could be a physical change. Could be a combination.
I broke this out because it simply isn't true. Everyone deserves happiness. Unfortunately that's no guarantee that we'll get it.

Over time, no matter how special, everything & everyone becomes familiar. It's just the way it is. We're restless, we get bored, we want something (or someone) different... new... It's just a part of being human.

but...but...but... I don't want it to be like that
I'm not strong and I don't have a pure heart... it won't end well.

The Skeeyks is right ... everything does become familiar in time ... but, that doesn't mean we can't work through it. Maybe you want to be the exception???

Just because it is hard doesn't mean it is bad for you. Could be an opportunity for personal growth.

Hm-m-m-m-m... well... as a matter of fact... sometimes it doesn't. That's why the divorce rate is as high as it is. The fact that a relationship changes over time doesn't necessarily have to mean it goes sour. It just becomes different. But I think, especially for men, it can be difficult to accept that change & not start looking around. Men are genetically programmed to spread their genetic material as far & wide as possible.

You can be strong. And it doesn't require a pure heart, just some good ol-fashioned "want-to".

There is *nothing* easy about staying in a relationship long-term. It is hard. But it is also worth it. That new relationship excitement always fades, sooner or later. You have to find other things about that person that you love, that don't 'get old'.

It definitely isn't sour... and I'm not really looking around per se. I just don't like this change. I don't have any thoughts about ending the relationship. I don't have any desire to end it. It wasn't even built on sexual or physical attraction. I'm not particularly attractive myself. She is. That's part of what makes it a puzzle I suppose. It's just disappointing to see this part of the relationship go.
I understand that. I love just about everything about this person. I suppose the first thing I noticed about her was her looks but that isn't where the love comes from. As a matter of fact it began as just a friendship and that's still the most important part. As I said to Skeezyks... I'm just not happy about this development and I'm puzzled and disappointed.
Of course I want to be exceptional I do understand what you're saying and it's good.
Maybe I'm overthinking this but it seems like unless I understand it I can't resolve it.
I think that deep down I'm just wondering if its a case "now that I've got it I don't value it as much." That would kind of undermine all that I think that I am and who I want to be.

Could be a case of "now that I've got it I don't value it as much". But just like a child with a toy, if someone else wanted it, even if we hadn't played with it for a long time, suddenly our interest (or arousal - sorry I couldn't help it) increases!

I don't think it is so much "I don't value it as much" - more like the relative importance of that value has changed.

It can be disappointing to no longer have that 'honeymooner' feeling, but it isn't a bad thing, there's a lot more depth to explore. Don't let it frighten you.