Mixed signals

I don’t understand why this man would ask my for nudes and never opened his messages after that. We texted on Friday and it Monday and he still hasn’t said anything.
It just makes me feel bad about myself to be honest.
He’s told me he really likes me and is planning on making me his gf but it’s really confusing to me when he goes days without responding.
We’re long distance and he seems really interested in person but I don’t know…