I don’t know what I am?

I really don’t know what to think anymore. Growing up I have been on and off thinking I was straight and then thinking I was asexual/aromantic. I am currently having a hard time expressing what I thought was love to my boyfriend of a couple of months. Naturally, he is very expressive and sends me sexy texts. I really don’t know how to respond to all that because I don’t feel turned on in the slightest. I feel like him and I have this connection but I rarely get turned on even if it’s just me. The whole idea of sex and feeling hot is something that I think about once in a blue moon. My problem that I am coming across now is the fact that (TMI) my boyfriend asked me if he can cum on my boobs?? As his girlfriend I find it very weird but do appreciate him asking beforehand. Now before anyone comments that I should talk to him about it, my happiness is making others happy. He’s my boyfriend and I really want to give him pleasure but just need advice on how to deal with who I am. Which I am currently trying to figure out😕