Resentment - avoid or address?

Greetings random visitors,

To be honest, I'm cool with not having all my friends on here. Posting here is more for my own benefit. Writing down my thoughts is super helpful because when I read something I'm critical of logic and sincerity. So, in reading my own ramblings, a lot is revealed that could be ignored if it remained as thoughts in my head (My head is of course biased and tends to blame everything on externalities).

I once had people to talk (really talk) with but each of my few close friends have moved away and/or  ignore me. I have one friend (who actually has time for me) left up here, Brady. While we talk about some men stuff like being poor, comics, videogames and movies; I find that I can't really talk to him about heartbreak stuff. He's never had a relationship, so he doesn't really relate with my major source of depression (which is residual feelings for girls that won't even talk to me anymore).

Well as much as I think on my own misfortunes, there are people much worse off. I saw a list online today, that was made by a guy who is a twice divorcee. It was titled "16 ways I blew it". He seemed to learn a lot about his own failings by writing down a list.

One thing coming to mind about my most recent relationship is that I resented her for not making time to see me. We lived 15 minutes away and yet she'd go weeks without being able to see me. I learned that she often spent time with her friends while shooting down any attempts I made at planning time together with her. I was able to break this occasionally by surprising her after her classes or rehearsals, but after my 8-5 job started up I lost the ability to do that.

While I felt this resentment needed to be addressed, maybe I shouldn't have mentioned it to her. I'm sure my inner dialogue did most of the prodding (why didn't she want to spend time with me, is she just stringing me along).

Admittedly, the only coworker that I felt comfortable talking with was a non-believer. She said that my girlfriend's lack of availability indicated a lack of strong feelings. This just magnified my worries.

So I asked my girlfriend to try to make more time to see me and then she said she was super busy and probably would be for the foreseeable future. (I wanted to hear something resembling "I love spending time with you and appreciate your patience with my many other commitments. I wish we had more time together too") She then decided to head home to Rochester for the summer, and later dumped me because she didn't miss me during the summer.

I still struggle with wether it was right to air my greivance, because she said that was a complaint she had gotten in previous relationships. Did this single criticism cause her to lose all her feelings for me?

 I'm not gonna say that she was my only chance happiness or anything but I feel like I need to understand this before I can have a successful relationship. Well, it felt better just to get that down in blog-form. I don't know if she'll ever be able to offer closure though...