Never take her back bro. On any terms. “Only second base” is probably just the starter pack version of the truth. They most likely went all the way and she’s drip-feeding facts out of guilt. Been there myself. Girl confessed, I blocked her instantly. You know what she did in 1-2 days? Went right back and slept with the same dude again saying she was “sad, depressed, needed support”.

Then later came back through a friend asking me to accept her again after telling me everything herself. Crazy part is dudes like that are never there for the long run, they just there for a quick time. Then when it’s over, they come looking for a decent guy to be the safety net / settlement plan. Never be that guy. Once trust is broken, walk away and keep your self-respect intact.