Hello there friend!

Well, you shouldn't be upset even if it's a 1 month relationship because it sounds like you had feelings for her before the relationship and things were unsettled so on paper it's a month but you've had ties to her for awhile. It reminds me of my situation. I dated a girl for a year. And then she broke up with me. Then I guess she missed me but toyed with my emotions (unintentionally) by calling/texting like once a month. So I had strong strong ties to her even a year after we broke up.

I'm not going to give you advice because I trust you are smart enough to deal with the situation. But I think dating other people will IMMEDIATELY make you forget about her. I have a girlfriend now and I've only dated her for a few weeks now and already I am over my ex. I cherish our memories together whereas before when I missed her I had a lot of sadness/anger towards the situation. Now I'm free from that.

It's hard to 'move on' but I think ruminating about the situation is no good. It's just a form of control. The situation does stink. She may have did you dirty a little bit (probably unintentionally) but you can't change her. You CAN change yourself. Instead of trying to find that one person to be with, BE that person for someone else. Get it? Don't ask others to change. Instead just be a happy person and a person that some lucky girl will say wowww I'm happy I found YOU!