am I crazy for feeling this way?

suzie

I've been with my boyfriend for almost 4 years and I've always been there to support him in every way. I show up for him whenever he asks and I'll just do it because I love him and these particular things make him happy and are important to him. hes shown up for my events a few times or not at all. I have a wedding coming up but I can tell hes going to come. he says he'll let me know when it gets closer but when we talk about it, he says how boring it will be, how he will just sit on his phone. hes basically telling me itll be a waste of day. to say the least I'm disspointed that I've shown up for him countless amount of times and he wont sacrifice one day to show up for me. I'm starting to think that this is the last straw and that he doesnt deserve someone as loyal as me, no matter how long weve been together or how I feel about him