Every time I see a friend he grabs my butt. In fact, earlier today I saw him in line at a restaurant and I got his attention and said Hi. The first thing he said is "come over here and let me grab your butt." I gave him a hug and he gave me a good squeeze, haha, sorry but it makes me laugh.
I think he is a really cool guy. He has so many friends, is very funny, and good looking. He is obviously full of confidence. Other than grabbing my butt he doesn't really make other sexual passes at me, but I would be kind of afraid to be alone with him in a room. I'm sure if I was in a serious relationship he would respect me, and I really don't do anything to stop him grabbing me. He actually makes me smile, and I kind of want to go to the beach with him and lay on my stomach in a bikini to see what he does, lol. So do you think he is normal grabbing my butt all the time or do you think I should avoid him even though I think he's so funny?
I think he is a really cool guy. He has so many friends, is very funny, and good looking. He is obviously full of confidence. Other than grabbing my butt he doesn't really make other sexual passes at me, but I would be kind of afraid to be alone with him in a room. I'm sure if I was in a serious relationship he would respect me, and I really don't do anything to stop him grabbing me. He actually makes me smile, and I kind of want to go to the beach with him and lay on my stomach in a bikini to see what he does, lol. So do you think he is normal grabbing my butt all the time or do you think I should avoid him even though I think he's so funny?

And for goodness sake, people need to confront people if they have a problem with how they act around them, instead of just getting upset and never speaking to them again, even though the problem could have been easily fixed with a simple conversation.
Most people aren't jerks/assholes because they want to be, they just don't know some friends may have a problem with it when it's towards them, so if you simply ask for them to stop, then most of them will. If they don't stop the behavior towards you, THEN you know they are a real asshole and you should avoid them.
Why would you want him to 'look back' at you? That's what 'respect' means. Wouldn't you rather have him like, love or cherish you?
If he's your friend and you don't mind him grabbing your ass then there's no need for you to avoid him. If he was to keep doing it while you are in a relationship with someone else, then yes, I would be avoiding him.
Just because he's "cool" doesn't make it right. He can't even respect you as a friend.