Relationship advice, what to do?

I'm sorry if this doesn't belong here, I was gonna try r/relationship_advice but I only see straight scenarios so yeah....

I (26M) currently have a bf (25M). We met on Grindr, back in August, we hooked up, I liked the guy, asked if he wanted to date and get to know each other better, and he agreed. On early November I asked him if he wanted to be my bf at which he said yes.

Our relationship is kinda odd, we both are not out, we dont really see/ talk each other a lot. He works a lot, he usually wakes up at 530 am for his first job and finishes between 2pm-5pm and off to his second job he goes at 530pm. He is isually free weekends morning and like 2 evenings during the week. So we at least each twice or three times at week.

Intimacy is also odd: I still live with my family so is not like I can have him over at my house everytime I want to. Usually only when I'm home alone or I sneak him into the house at night. I consider myself a side (altho I don't mind to bottom for the right person) while he is a top. He is not really into oral sex, giving nor receiving (which is something I want ask, why he doesn't like it? Is it rude to ask that question?) So whenever we are together we usually kiss,body contact, rimming. We tried to have anal sex once but we couldnt since we didn't have a condom at that moment. Lately, I have been trying to have intimacy with him, but he just either is too tired, falls asleep and just hugs me saying he wants to be like that all day. And don't get me wrong, I love he does that but I have a high sexual drive when I am around him, and I show it to him but he just prefers to cuddle and to fall sleep while he hugs me.

I would say he is a rather cold person but lately he is getting better at expressing his feelings towards me. I love spending time with him when we get the chance, we go out to eat, we like going shopping, and stuff like that. He is always saying nice things about me, he says he loves me, he always grabs my thigh or hand when I am driving, we kiss every chance we have, sometimes he even does it out in public which is I think is a big deal for both of us. And for some reason I wasn't expecting a Christmas gift, but he actually gave one, which only made my day even better (I gave him something too). But lately I had had a feeling in my gut, and it showed me something. He still uses Grindr, and well it has made me question a lot of stuff: am I enough for him? Has he actually find the one? I told him whenever I asked him to be my bf that I didn't do open relationships. I' m not that kind of person; and if I ever caught him with somebody else our relationship would end. He was ok with it

The only reason why I knew he still uses the app it because he was scrolling through his phone and I saw the app on his phone, and well, I created a profile again to check for myself. He doesn't use it when we are together but as soon we say goodbye after seeing each other he would open the app and that has made me question a lot. We also live close to each other, so I see his profile.

Is he serious about our relationship? You all think he cheats on me? What should I do? Am I overanalazying things? Am I being selfish for wanting to have sex even tho he is tired? I hate confrontation and I would hate this would do something to our relationship, I truly love and and adore my bf, but I don't wanna be in something that is not meant to be.