May be he would like you to help him with your hand or mouth, Myself that is more satisfying then a pussy sometimes, because I prefer to pleasure a gal orally.

It's not up to you. You are beautiful and truely a lot of men fantasize having sex with you. We men want to have sex all the time, but if we have sex it lasts some minutes and we are done. Most guys like to masturbate because of their own relief. To satisfy a woman is another part. And yes masturbating is quick clean and caring.
If he doesn't care about you talk to him.. He might be afraid.

Let me start with the most obvious. You are gorgeous and very sexy, so it has nothing to do with your appearance. Should we take your question to mean that you want more sex than him, though? It could be true that two people do not match in sex drive, but it can only be clear if you talk more. Can you tell him directly that you want more sex?

Yes. And no. Guys have a sex drive all over the map. Most will claim that they would really like to fuck all the time, but given the chance, a lot of guys will pass. So if you go over and he doesn't seem interested in getting his cock into you, just make a mental note that he isn't wound too tight when it comes to sex. It is nothing about you.

But your other question is about masturbation. I always masturbated, and some friends of mine masturbated when we had a gf or not. Sometimes we want to jerk our cock before we go out with the gf. Sort of games the pressure off of you know what I mean. Sometimes we want a quick one so that when we get to fuck her, we last more than a minute. Sometimes it feels good no matter what we are doing.

I am wound a bit too tight, and sometimes after she let me fuck her, I would sneak off to the bathroom and jerk my cock. I didn't want her to feel bad about not doing a good job and I know that she wanted to stop although I could fuck all night.

So yes, guys still masturbate when they have a gf some more than others. Don't worry about it.

I’m married and masturbate all the time! My urge is a lot more that hers. She knows I do and doesn’t care! Glad she doesn’t know I’m on here I don’t think there is anything wrong with it