He probably on some level WAS contemplating a "committed" * relationship with you.
Sadly not because you're wonderful and special: and you ARE wonderful and special, OP (please do NOT doubt this!), but this guy can't see that because all he sees is himself and what he can extract from you.
No, he was contemplating a "committed" * relationship with you because he felt "It's time I settle down because of [whatever social norm e.g. thinks he should have kids]". And/or "it'll be easier when I relocate to Xplace, because OP will help me move and do all the cleaning and cooking and looking after me."
(Or something like this. There's some motivation behind that expensive hotel/cuddling etc behaviour there, and it's not about you, OP, it's All. About. Him.)
And once Mr Prize here had decided "Yes. It's time to settle down" (or whatever), he started thinking, with his mental finger moving over the crowd of women who he thinks will be flattered to pieces to have him choose them,
"Hmm, I believe I will choose OP. She's attractive, good in bed, and obviously head over heels for me, so she'll endlessly tolerate my cheating ** and lack of commitment and careless shit behaviour. Yes, indeed, she will make a great domestic appliance! Yes, OK, I'll go for OP."
And then, when he was PLAYING the committed man in the hotel, he started getting really cold feet. He got thoughts like, "I'm going to be trapped. OP might become like Veronica, who ended up screaming at me for days because she caught me cheating. Or OP might start crying - god, can't abide crying women. Is it worth all the time, energy, and devotion that I'll get from her? God, women are such a bother. Maybe not."
And he freaked out and showed you who he really is: a cold, calculating, emotionally-stunted shit man who will treat you horribly.
That cold face you saw in the hotel: that's the real him, OP. What you've been seeing up until now is his mask.
Honestly, you dodged a bullet.
And btw, he WILL be back. He'll say, "I got scared, I panicked, I love you, I want to spent time with you blah blah blah". He'll lovebomb you, massively future fake you.
OP: don't go back to him. Don't do it. Delete his number, and put your energy into figuring out why you fell so hard for this lizard man.
*I put "committed" in brackets because the word doesn't mean the same thing to him as it does us.
** And he WILL cheat and run off whenever you insist on better behaviour.