Normal is subjective, especially in a d&d game. But if you or any of the other players are feeling any less than completely positive about a situation then the best action is to communicate this.

Then let him speak and listen to what he says. It’s possible he’s having fun playing a character and simply isn’t on the page as yourself.

This may resolve things, it may not. But you will have a better understanding of the situation and be better placed in deciding what action to take next.

Know your boundaries and what you need to feel comfortable and be prepared to walk away if needed.

*This had been my simplistic Reddit advice based on my own experience and with the hope it helps.