A matter of fact as HER friend....you SHOULD NOT .....advise her to even consider dating him. He is a friend of yours yes, he may even be a nice person, but he is not BOYFRIEND/HUSBAND MATERIAL....and as "HER" true friend....why would you even consider this option.
I've seen too many people, after the "couple" hooks up and starts having problems....the person who incited and encouraged the "hook" up say....Oh, I always KNEW he was a TRIP!!!
Why would you want to SET her up for drama and foolishness. I think NOT!!!
I'll tell him, you don't get involved with people relationships, you don't do the "hook up" thing.