Boyfriend and I

We were at dinner last night and he was all into his phone texting his friends but I wanted to show him a desk that I needed for work to get his opinion and he kind of just brushed it off so I asked him why he ignoring me. He said he didn’t so I left it alone and started a new convo , but he was pissed saying” you gotta stop

Doing that “ & saying I can cancel the trip. Which I’m like we waited almost a month for a vacation just to cancel it over something TINY. This relationship is already rocky , but he says he will go now only if they don’t give us full payment so he really doesn’t want to go and the drive is 6 hours .. what would you do? He paid $300 I paid $200 but they are saying they can only refund us $300 which I’m thinking to take the lost on my end and just give him the $300... I’m really considering splitting because like your 31 years old , And he always does this !! always !!!