The question is: are you open to these kinds of sexual acts, are you willing and interested in doing them, and if so, are you willing to stick to your rule of commitment first?

It sounds to me as though he is not respecting your boundary of commitment first by practically pouting and continuing to bring it up without a commitment.

However, a problem here is that you have mainly a sex-based relationship. You talk via text, not on the phone, you see each other only for sex when you do get together, based on your post, so he may be viewing this as purely a sexual relationship rather than a real relationship, you see?

Still, regardless, he is not picking up on your cues that you want something more, and he is still pushing for these things and not respecting your boundaries.

It is possible he is gay or bi-sexual. I had one such very similar encounter, & the guy turned out to be bi-sexual. This is not to say for certain that he is, it's just very possible.