<human>: Backstory, we met a few years ago, dated a while, then broke up and started seeing each other recently (within 6 months)

So I was/am seeing this girl, that i am madly in love with for such a long time. We weren't officially together when this all happened. But, Sh left for about 2 months. Everything was going great before then. She left, my anxiety and depression got the better of me, and i became really distant. I was trying to protect myself incase something happened. 

Skip ahead. She comes back, and tells me she fell for someone while she was away. that fact didnt bother me, as we werent officially together. Although, now she cant give me a definitive answer on where we stand. Its literally killing me inside, I cant eat or sleep. I just want to know whether I should see where it goes, or cut my loses and let it all go.

Can you provide a brief overview of the text?
<bot>: Girl I was seeing left, came back after falling for someone while away. Should I stick around or Just cut my loses?