Yes. 2 reasons. Texting, or calling you at Midnight, even if it is your birthday is rude. You could have been sleeping. He could have waited for a more appropriate time. 2nd. He could have said what he wanted to talk about since he had already contacted you. I think because it was your birthday, he was just thinking about you, but I don’t think he is probably wanting anything more. If he did, he would have contacted you before your birthday. I think it is right what you did.