Yes you should leave it alone. Get on with your life, go out to meet people, join a club, get on with your life just like before he came into it. If you did say something to him and he took you up on your offer, do you really think he wouldn't do the same thing to you that he did with the person he is with now? Would you actually want someone like that? If so why?He seems like everything you want but that is just a fantasy you have built in your head... not the reality. You really don't know him for the person he is...that takes dating (online dating with Match.com) someone, and you haven't had that...If it comes to the point and he is not in a relationship, and you are still interested then approach him....in the meantime do not wait around for something like that to happen. Don't put your life on hold for a fantasy...

You're right. I never thought of it that way.There's too many men out there in the world to be waiting around for someone who might not even come around at all let alone feel the same way that I feel about him.Thanks for the advice...

Yes there are.... you deserve better than to wait around.Good luck...