<human>: So my gf and I had sex and she started crying during it.  She says the comfort and happiness she has with me reminds her of and makes her miss home and this is her first move away from there.  She says she keeps asking when is her life going to feel comfortable like home.  

She's cried once before during too kind of at the beginning of the relationship for similar reasons.

I told her that she has to learn to enjoy where she's at now for its own reasons and she's gotta let go of the past.  Her home will always be a good memory but that doesn't change where she is now and pining for the good memories of the past will not help her.

She was happy with the advice and took it to heart, thankfully, but now when I think of hooking up, I think about either her crying or me as a stopgap comfort measure or that she'll never move on and stay anchored with home and feel miserable unless she's back. I'll talk with her the next time we meet but she's got big exams coming up so I'll have to save the potentially relationship-ending conversation for later.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Girlfriend cries during sex because the comfort she gets from me makes her miss home.  Hesitant to have sex now, wat do.