I have recently joined this new workplace where this guy who has been in the company and i just hit it up so smoothly. He has been in a relationship for the last 12 years and has been hooking up with several gals throughout and apparently wants the same with me. I asked him if his girl knows he has cheated on her multiple times, to which he simply says i have been very clever to not let it all slide infront of her. He says he is doing it for himself because he knows 2 years down the line when they are married he will not get to have all this fun. Isn't this ethically or morally wrong? I do find him hot and would have banged him in one go had he been single but if i do sleep with him wouldn't i be assisting him in cheating as well? He says all his past hookup knew he is in a relationship and gives a reasoning to me to do what i want to without thinking about others. I so am into him, not romantically. What should i do?