▲ 3 r/relationships
My sister 23F sister is cheating and taking advantage of her 21M boyfriend and I want to tell him.
Is it cheating if you let guys talk to you all flirty and you dont tell them you are taken?
Thats what my sister is doing with multiple guys. I want to message her bf if they are serious or in an open relationship.
If they are serious and not open, I wanna tell him she is cheating on him, but idk if its my place.
Tl;dr my sister is cheating and using her "bf" but im not sure if they are in an open relationship.
I wanna message and ask him, but idk if that is any of my business. I just feel bad for the guy. Hes so blind.
Edit: please look at the rest of my post in the comments. Reddit warned my post was a block text so I didn't include everything here
u/An0therLem0n — 5 hours ago