Bf and his phone

Is this common? My bf likes to stay up on his phone when he drinks… my bf can drink anywhere from a 6pck to 12 and there are nights where I’m tired I’ll go to bed at 10pm and he tells me he’ll come to sleep soon. & I wake up at 1/2am and he’s drinking glued to his phone, is this normal? I have mixed feelings,

We were cuddling tonight and he’s been horny all day so I said “after this episode we can go to the room *wink*” I waited for him to drink his 7 beers and it was 11:30 so I told him okay I’m getting tired let’s go (I’m pregnant, so I couldn’t stay up longer if I wanted to have intimacy) we come to the room he tells me goodnight and he’ll come to bed soon..

It’s now 1:30 am & his in the living room drinking on his phone

Edit- I’ve asked him if there’s someone else because it happens too often he gets in a mood and says no. So I don’t know what to think