My best friend’s girlfriend is a childhood friend of mine and I was the one to introduce them. They’ve been together for 7 years and they were talking about marriage. Recently, they’ve started arguing cause my best friend quit his job and school to cope with the loss of his father. She started complaining to him that she can’t deal with this alone but my friend got diagnosed with depression and started taking pills. I met with her for a wine and she started crying and telling me she feels pressured and stuff and I was drunk too and we ended up having sex. The problem is after this we met again next day and had sex again. She now tells me she can never go back to loving my friend and that we should move in together somewhere else. What the fuck do I do right now? Is there a way to make things back to how they were and bury the secret forever. I want to tell her I’m not interested in anything more and to bury this but idk how she will react. She calls me everyday telling me she misses me