That's it basically..
My partner is part of a social club that go for a drink on a Monday evening, and they often take trips together. I'd say 3-4 long weekends a year. Which is totally fine with me I do the same (maybe 1 or 2) with my friends. It makes him happy and I'm fine with that. Although this afternoon he has forwarded me a text which was sent to him from the guy who organises these trips, itinerary and details of next trip. I knew nothing about it he hadn't mentioned it. And he'd written 'I take it I can't go?'. I quickly scanned the message and seen it was for 4 days and right over my birthday weekend. I just feel hurt that he'd choose not to be with me on my birthday. I always make a big effort on his birthday as they have always been special in my family. On top of this, just on Saturday night he was trying to ask/tell me he was going to New York with his cousin and without me. We have both been before but not together, and it's somewhere I suggest often I'd love to go with him. So I guess after that convo and now today's text I am just feeling quite down about it 
Am I being too precious here? I really am not high maintenance I just assumed he'd chose to go away with me for my bday over his mates.