Is my betta being a "bully"?

Got a new betta (Pitch) and nerite snail (Slick) and I can't decide if Pitch is behaving aggressively toward Slick, or not. I know bettas are curious but there's a looooot of hanging out near the snail. I've seen him nip at the snail only once, the night they got introduced to their new home...nothing but hovering since. Have some pics for opinions