<human>: Can you provide a brief rundown of the text in within 3 sentences?

Me and my girlfriend have been together 9 months. Everything had started out great but the last few months have been trying on me.

To put it simply, I feel like she isn't putting in the effort to see each anymore these last few months. For example, I would make plans to see her a couple days in advance to clear it with her. She would say yes but inevitably in some shape or form, stands me up.

Some cases, a friend would ask her to hang out the same time we are suppose to see each other. She would say yes and tell me the last moment that she can only see me briefly. Other times, I would go to her apartment to pick her up and go out. Unfortunately, she has stayed out all night and didn't sleep until morning so she winds up sleeping in. The rest of the time she flats out forget.

This trend leaves me feeling hurt and frustrated. I don't know what to do. I talked to her about it but the same thing winds up happening. I don't feel that I am being needy or clingy because I would have been fine if she "no" to me to hang out with her friends. The problem is she says 'yes' and winds up stringing me along. I am a busy buy and I work hard to get things done to be able to spend time with her.

I know she doesn't mean to do it on purpose as it is just who is (always late for work and forgetful) but I'm sure its not too much to ask to put in a little effort to see through plans.

Am I being touchy and should learn to roll with punches or am I reasonable to feel this way? 

This is my first relationship. Breaking up has occurred in my mind but I have it bad for her and I'm needing perspective that doesn't have love blinders.
<bot>: I make plans with gf in advance and she ends up standing me up in some form. Is it time to pull away?