Is it normal for my best friend's boyfriend to act like this towards me?

So... I've been friends with this girl for a long time, probably about 6 years. She got a boyfriend about two months back, and for like four months before that, me, her, him, and this other guy used to hang out all the time. The two guys are best friends. Back then, he'd flirt with me and she would hang all over him. (Okay, let's make this clear I have no feelings for him and never will.) He'd call her annoying, say she was to touchy, though, I would get angry at him for saying bad things about her. Well, now that they are together they both treat me really bad a lot of the time, but when they aren't she is ignoring me and he is complimenting me... over and over. I try to ignore it, but she says I am rude for not replying to him. One time, I was sittingnext to that other guy, and her boyfriend,she was standing in front of us telling a story. Her boyfriend, right in front of her might I add, tried to hold my hand, and when I wouldn't let him he trailed his hand over my thigh (I was wearing shorts.) and when I jumped and was upset, her boyfriend just said "It's cute and funny to see you feel awkward and wiggle." and I just gave him a mean look and looked at my friend, she was just laughing and okay with it. The other guy just pulled me closer to him. I had my friend sit where her boyfriend was the next time he got up. A different time, the order we were sitting went her boyfriend, her, me, and then the other guy. Her boyfriend had a hand on her thigh, and an arm around her shoulders... but he began stroking my hair. I gave him a very confused look and asked him why. He didn't answer me but my friend slapped his chest and he said "Well, I would rub your hair but it is short and always in your hat!"... my friend let it go. I pulled my hair to the side where he couldn't reach it and the other guy scooted over and patted the seat to let me know I could scoot away from them. this stuff happens all the time, to the point I get so awkward I don't hang out with them anymore. Is it normal for him to act this way? Am I just being to nervous? I have a bad habit about getting to nervous so maybe that is it. Is any of this normal?