There is a lot underneath this question. Let’s talk Relationships 101.
First, peers don’t issue commands to each other. “Do not celebrate…” and “You must celebrate…” are not the language of respect. Also, anything that starts with “How could you” is right out. These are not healthy attitudes, nor healthy approaches to problem-solving.
Second, this idea of being offended at another person’s inconsistency—it’s completely artificial. If I skip my woman’s birthday but then have a big blowout for a drinking buddy, “offended” doesn’t apply. I haven’t done anything to her. What is she offended about? She thinks I’ve made a statement of some kind, right? My drinking buddy is more important, or something like that? No. I haven’t made a statement. There’s nothing for her to be offended by. And she doesn’t know the meaning of my choices until she asks me about them.
Relationship Rule #27a: You can’t read his mind.
Relationship Rule #27b: He can’t read yours.
Now, she might be **hurt**. That’s different. I didn’t do anything to her, but she is hurting. What is causing her pain? Until she asks me about it, she is causing her own pain, by listening to her own unfounded interpretation of my behavior. I can be sad for her pain, I can comfort her about her pain, but I’m not causing it. She is.
Here’s what you do when you are hurt. Talk to your partner. Don’t talk **about** him, that is, don’t tell him how wrong or cruel or insensitive he is. Just talk about the events. He skipped your birthday, then he had a blowout for his buddy, and that made you feel like he cares more about his buddy than about you (or whatever it is that you feel about it—but remember, nothing about him; don’t say, “I feel like you’re being a dick”). Then you can ask him: do my feelings match up with your intention? And then he will say “no”, and you can figure out what it did mean (probably nothing) and then you can explain that it would mean a lot to you if he would do so-and-so for your birthday. Think about the different kind of response you would get, telling him it would mean a lot to you, rather than saying he’d better do it or else.
People who consider each other equals don’t order each other around, or attempt to coerce. They negotiate, and take responsibility for their own feelings. Peace and luck