Unfortunately no....
Even after both the boyfriend & the professor got to know about eachothers' relationship with Yeonwoo (ch 37-38), after a crying session and asking to stay away from eachother, they still ended up agreeing to meet again, ofcourse they both feel guilty but ig that guilt is nothing compared to their "love" for eachother.
I'm hoping Yeonwoo and him breakup, Yeonwoo can end up with the senior (who actually has feelings for him), but idk how the ex-boyfriend and mom is gonna end, anyway they try to spin it, it's gonna seem shitty.
Your ex-boyfriend and mom getting it on with a 10+ years age difference??
Why doesn't he even think to break up with his beta boyfriend if he knows he's gonna keep cheating and can't control himself?? And with the recent chapters he's pretty open and comfortably having sex with the professor....