Is this normal behavior for knowing each other for 3 months?

Is he using me for sex or is he just physically into me? Not going to lie we had sex one time and I didn't even get to finish. After that I guess he enjoyed it. We text everyday but he is always inconsistent this is since the beginning but I told him about this twice. He stops for a minute then does it again. I'm so frustrated that I just want to end it because I feel like he is too sexual too early and I'm not even a girlfriend yet. Other guys would ask me at this point. He leaves me on delivered but will be active on IG by reposting things for hours but does not message me back. He sent me these two reels at different occasions: one about if you're not afraid send this to someone you want to crack then the one today he sends about Its send your man a pu**y pic day. I just read and ignored the one he sent today. We've only been on one date and he barely spends money on me. Is that a red flag? I want to speak my mind so bad but I know it's going to come off harshly.
Is this normal behavior for knowing each other for 3 months?
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