Guy's Behavior

Is it normal to be scared of falling in love this much?

I have a guy friend and he wanted my best friend. She liked him too and things were looking well for them. They kissed and they went out. But then she ended things and it really hurt him. It has been ten months. I would say he is pretty good looking and he has more opportunities. But he just looks so uninterested. He only hangs out with his buddies and drink and do stupid stuff. He could have other girl if he wanted to but he just doesn't care anymore. If someone would tell him there is a girl interested in him so go talk to her he would rather run away. Maybe it is not my bussines but it is a shame i think that he is like this. He is funny, cool, nice and a good friend but his attitude to this is so bad. He is like if this girl turned me down all others will as well. He protects himself so much that he is willing to miss great opportunities. I think he got blow to his self esteem cuz he often looks so insecure.

Is it normal to be scared of falling in love this much?
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