<human>: I haven't been with the girl long (about 6 weeks), we broke up 3 weeks ago (her doing) and got back together sometime last week. I haven't heard from her since wednesday evening and have made 2 attempts to contact her. 

Our last conversation involved me saying we'd both be happy and successful. She asked 'but together?' to which I said 'I see you as a long term partner, but I can't say for sure where we'll be in 20 years.' when she asked why I saw her as a longterm partner I listed several reasons and I haven't heard from her since. 

My friends are saying she wants to break up again and is avoiding the issue by just not talking to me. I'm pretty confused and don't know what to do in terms of contacting her again or just leaving it be and considering myself single.

Summarize the given text in a few sentences.
<bot>: girlfriend has not responded to texts in a few days, she's flaky to begin with and I think she wants to break up, what now?