Cold shoulder on birthday

2 years in a row my partner (30m) has taken me (27f) away somewhere nice for my bday weekend, taken me on dates and we’ve had a lovely time! He can be a bit of a wildcard in the sense that sometimes, he can be quite cold. For example not say much, be near constantly on his phone,have a type of demeanour where you feel like you’re in the way? We also can’t see each other often due to ourliving situations, so it’s hurtful when the limited time we have together goes this way.

Anyway - both trips, on the date of my actual birthday, he’s been that type of «cold» towards me. I feel uncomfortable because i know if i say something, it will annoy him. I’d also feel bad, considering he’s taken me away and made loads of plans for my birthday weekend. Both birthdays, he never said happy birthday or gave me some type or birthday hug or something? Would this bother anyone else, considering everything else he has put together to celebrate my birthday (weekend)?

I honestly have no clue if i’m being sensitive about not being hugged (or whatever), and told happy birthday on the actual day. I would love some opinions!

Tldr; Partner plans lots for my birthday weekend but weirdly doesn’t acknowledge me much on my actual birthday. don’t know whether i’m sensitive for being hurt by it, since he’s done so much aside from being emotionally present on my birthday.