<human>: Can you summarize the given text in a few sentences?

So my (now-ex) girlfriend B and myself had been dating for 6 months. During the relationship, there were frequent problems of us not seeing each other as often as wanted (once every week or two) due to a multitude of reasons from both sides; her potential health problems, stress from school, among others that she seemed to not put me as a priority. Given that her parents were/are going through a divorce, this was understandable but still put a lot of strain on our relationship. Around a week ago we talked a bit and "mutually" agreed that going our separate ways was for the best. I put the mutually in quotations because the conversations went something like:

B: I feel like I've been doing a terrible job as a girlfriend.

Myself: You're doing fine.

B: I don't have enough time for you right now.

Myself: Well I can't change your mind on that.

I didn't expect to take the break/break-up so hard, but in the past week I have been unable to sleep, a lack of appetite (around one meal a day), and severe depression that stems from problems I've had before we even began dating.

I tried talking to her for a few days, and didn't get much/any of a reply back. When I did, she assured me that she was not ignoring me but that she was still super stressed out and that she was sorry but she didn't feel much of texting anyone recently because of her bad moods. She says this, yet still will go on social media and post daily.

Is asking for her back a bad idea? I don't know if I can continue my current habits as of now, especially with college starting soon
<bot>: Girlfriend and I agreed to a break/break-up due to multiple factors. Without her I cannot sleep, eat, or think regularly.