<human>: Condense the text into a few key points

So me and my gf are on a sort of break right now. We're both looking to get more serious in our relationship, but right now we have some issues (mostly her) that we need to sort out. They relate essentially to maturity and personal growth; she would act really immature and do fairly petty things causing relationship problems. We both know we love each other, but she just isn't mature enough for it all right now. So we decided to take a break from each other so we can both grow on our own. We decided not to see other people or anything and catch up every few weeks or so.

Anyway, she went on vacation with her family for two weeks and before she left we agreed that when she gets back we would talk and see how her progress is coming along. Because she's the one who needed the space, we decided she should be the one to make the first move. Ball's in her court kinda thing. So while she was gone I sent her a short message just saying that I miss her and can't wait to hear from her when she returns home. She completely ignored my message (phone shows she read it) and never responded. I thought it strange at first, as she usually answers my messages almost immediately, but dismissed it as we weren't even supposed to be on speaking terms. Kudos to her for sticking to our plan, right? My problem now is that it's been 3 weeks since she got back and still nothin. Doesn't this completely go against the whole point of her trying to mature if she can't even communicate with me? 
Is this a bad sign?

Please help I just want to make sure I'm not overreacting and I don't want to be the one to contact her first. Not having a manly ego or anything, but I don't want to mess with whatever she has going on. We agreed she has to be the one to talk first..
<bot>: gf and I are on a break, she agrees to get in touch with me when she's back from vacation, but it's been 3 weeks and I haven't heard from her