would it be okay to fall in love for a guy younger guys

I wouldn't be worried about the age difference. I'd be worried about the fact that he is currently i a relationship instead. I mean, you have to respect their relationship and try not to destroy it. You may not want to do that but in opening the door between you and you' re friend, you do that unconsciously. If he really wants to start a relationship with you, I believe he should be man enough to break up with his current girlfriend to show his respect to her and to you too. You don't have any plans to be just his "other girl" right? Even if he tells you that it's you that he likes more, I don't think that that is good enough. I believe that as a woman, you deserve to have a man's love and attention which is exclusively for you and not just to share with another woman. I hope I was able to help. Just my opinion though.

age does not matter my boyfriend in 11 years younger then me and we have a heck of a great time together. but if he has a girlfriend of 7 years do you think that he is going to leave her for you because after 7 years there has got to be something that is keeping them together that long.

My bf is younger to me too (4 years) so i would say its not a problem to like younger guys. But you said he has a gf of 7 years - is he willing to leave her? And if he can leave a gf of 7 years then whats the guarantee he will be with you for a longer time? Think about it.