Am I Being Groomed?

July 2022 I got on this app called HUD which is strictly for hookup dating. I’d tried bumble and tinder before for relationships but I quickly found out everyone only wanted my body. So before I came to terms with a guy only liking me that way, I decided I’d go on HUD and get more experience. I stated in my bio that I wasn’t ready to lose my virginity, but that I’d feel comfy with giving each other head and most things as long as they don’t stick it in. Then I matched w this man & he is 41. When we texted, I let him know no sex and he said that’s totally fine that there’s so much to do that isn’t sex. He said our first time meeting we could watch a show on netflix and smoke together and i’d meet his dog. So i went to his house, and we watched the show, and i’m not a smoker but i took one hit. Then eventually he kissed me and asked to take me to the bedroom. Not going to give too many details, but i was exposed and his thing was out and he rubbed it against me, and I said “I’m not ready yet, remember?” and he said “Yeah. it’s not in, this is just the head.” and it felt good without being inside so I was ok with it, but then he said he could feel that i wanted it, and he stuck it in. And I was shocked, but I couldn’t take the two seconds back like I couldn’t reverse how quickly he stuck it in since he was already rubbing the head. So I accepted it. And I liked sex after. And he’d tell me how beautiful I am in a hundred different ways. He’d say how we need to go on a beach trip and dinner dates (never did it bc i left for school). He paid for my Plan B, gas, and dinner when he made me late to seeing a friend. He’s nice to me. But a couple days ago, we’d thought about him coming to my university city and us staying in a hotel room together. We haven’t seen each other since that July. He wasn’t able to come because of no sitter for his dog. Later the day he was supposed to come, I got the idea to search him up on a social media platform we’re not friends on. I found out he has a 21 year old daughter. One year and some months older than me. I just turned 20. He never told me. I haven’t brought it up to him. He wants me to go to his house when I go back home for break (what I need advice on). I feel like it’s wrong now, though. He’s been nothing but kind and empowering to me over text since July. And he makes me feel good talking about what he wants to do to me when I ask and complimenting me when I post a normal picture. Asking me how me how my day went. But, it makes me look at him differently. Not that he has a daughter, but that he can hook up with and say sexual things to someone who could be in his daughter’s class. Is that wrong? or could it be that he doesn’t even think about my age, he just likes me. Bc he doesn’t talk about my age in a creepy way or anything. He calls me baby sometimes in the heat of the moment. Or lets me know it’s ok if I cant take it all since I was worried about that since it’s been so long. But that’s it. And I asked and he told me I’m the youngest person he’s ever been with. He did ask once if I felt ok about him being 41, i think the first day we met. Anyway, I posted on a different platform for advice and someone said I was being groomed, but I’m not a minor.