If he's gonna beat the crap out of some guy for that, then yes too overprotective and I'd probably leave him in fear he'd end up being some controlling jerk later. I get looks, even comments, all the time (what girl doesn't) and my husband takes it as a compliment. He says "I know I have you and they don't, so I don't need to worry. I'm glad other guys want you". He will get overprotective if a guy touches me, or tries anything. But, if he didn't, I'd be worried. Other than that, he always lets looks and comments slide. I do the same with him.