Today was my birthday celebration with my family (actual birthday is on Wednesday), and I asked my boyfriend to be at my house for 11am so we could drive together to my parents' house. At 11am I checked Find Friends and saw he was still jogging in the park, so I text him and said that I would be leaving without him if he didn't hurry up, as I had told my family I would be there at 12. He called me and said "I thought you said 11:30" so I said "well I said 11. Will you be ready for 11:30 then?" and he said "no, just go without me". I then said ok, but after putting the phone down I got upset about it, it is my birthday and I wanted him there, so I text him saying "it's really important to me that you come". He didn't reply for 3 hours, then was all apologetic saying "I was in the garden without my phone and didn't see your text, I didn't realise it mattered so much to you". AIBU to break up with him for this? It is my birthday celebration, he wasn't even going to be ready for the time he thought we were leaving, ignored me for 3 hours when we were talking about it. Even if he didn't see the text about it being important to me, he shouldn't just not look at his phone after that discussion, should he? I just feel like he couldn't be bothered to come and thought "I can just not go and then say sorry and it'll be fine". He is usually so lovely and caring, but we have been arguing quite a bit recently. I really feel like breaking up with him for this, it's upset me a lot and ruined the day really.