its my birthday tomorrow and i think one of my mates has forgotten my birthday, i dont want to sound really selfish, but i go out of my way for her birthday but she hasnt even brought my birthday up, we havnt spoken much cos of exams but she hasnt even texted me much at all. ive texted her a few times and she hasnt replied to any of them. though i rang her the other day to invite her to a sleepover, she didnt even say hello, or bye. i asked her if she was able to come she was like 'dunno', it may be just me but i would thought it would be polite to say 'thanks for inviting me but im not sure if i can go' she was sounding like she was annoyed at me, though im positive i havnt done anything wrong.
if she has forgotten, well i hope im not being selfish but i would be upset if she had forgotten it. do you think i should not mention it, or ask her about it?