Males and females in love!!?

tell me how to win an ex back when they are with someone else, we are talking anymore but we were all he time for the past six months thats how long it has been since the break up, he has said he loves me and that im the girl he sees in the future but right now he is not sure on where he wants to be so he will stay with her only because if he leaves her for me will we end up hurting each other all over agin. by ignoring him will that do me any favours.... I NEED ANSWERS, ALL GOOD OR BAD PLEASE.. this relationship was 7yrs do i give up.