don't just let the guy makes the decision.. while waiting let her ask herself if she can REALLY accept him back after all this even if he still wants to continue the relationship... some wounds just doesn't heal as well as we think it would... and there would be scars...

better to end it now rather than later if it's the inevitable outcome.

well... two timing doesn't necessary means he doesn't love her.. he's just horny that's all. how's the progress? have you chat with her lately? give her lots of support.. if it's not gonna work, it's not gonna work... don't drag too long.. just a waste of time. i've seen 12 years of relationship go down the drain so what's 4 1/2 years? better now than later