Serious advice...

So there’s this guy (as per) and I feel like we have such a connection, sparks fly the lot.

Problem is he has a girlfriend.

However this girlfriend cheats on him weekly. She lies about it however We all know it and he knows it too; he just refuses to admit it to himself.

They share a flat, car and have a holiday booked next year.

I feel like he’s too comfortable and cares more about the ties to the relationship than his happiness.

It upsets me so much that I can tell he isn’t happy and makes me feel sick how much of a dirty game she’s playing.

I just want to make him happy and to not have a girlfriend cheating on him all the time.🙄

ANY ADVICE?!😩