What's wrong with me???

So I'm going to start off my saying I'm not a very emotional person. It takes a lot to get me excited/mad. I'm also not very physically sensitive, I'm not ticklish and have a high pain tolerance because of accidents in my childhood. I'm now in my late teens and have my first boyfriend. I know he's only the first guy I've dated but I'm honestly in love with him. He's so rational and shares the same social qualities I do. We are both very reserved and kind of awkward, but all my friends agree we are perfect for each other. With that being said, I don't understand why I don't like the physical aspect of our relationship-- or just physical things in general. My friends all go on and on about how their boyfriends give them butterflies, how they go crazy for kisses, and a single touch drives them wild. Me on the other hand, not so much..... We make out quite often, I know my boyfriend likes it, but I don't really get the point. Its just like moving our tongues about in each other's mouth and to be honest I find more pleasure from just talking to him. I guess I enjoy the fact he wants to kiss me, but I don't actually enjoy the physical kiss itself. Over the past few months he's also been getting gradually touchier, for the past month he's been kind of stroking my boobs outside my shirt lol. I honestly couldn't care less if he was touching my elbow, my boobs, or my butt. It all feels the same to me. The sucky part is he's like super into the physical stuff and I'm just not. I fake it for him, and I kind of turned it into a game where I find his pulse and see what I can do with my hand or my tongue to make his heart beat faster. I love making him happy but am I going to be faking physical contact for the rest of my life? I'm still a virgin and do not plan on losing my virginity, but if I do, will I feel anything??? Am I asexual or is this common? Please help this is kind of a touchy subject to bring up with my friends since they make me fell self conscious about my relationship. Any insight appreciated.