So I've been with him for four months. He used to go crazy when we had a fight, used to say that he loves me a lot, used to do whatever to make me fall for him. The last month though, i fell and gave in to his continuous request for sex. 2 days ago i felt that there is someone else (i don't know why) to know yesterday by mistake that he is with a girl for four years now and he's been lying to me all this period. When i asked him he said yes. He confessed he love her yet he said that i mean a lot to him. I am totally destroyed. What shall i do?