Most Helpful Girl
First of all, I applaud you for even thinking of this! Honestly, most guys wouldn't even give it a second thought. Shows you care about your girlfriends feelings.
I don't think you need to "apologize" per say, and I don't think she'd expect you to apologize for just being tired. But it might be a nice gesture to just explain why you were like that and say that you hope it didn't freak her out. Is saying this required? Nope. But it's definitely a considerate thing to do.2THIS IS NOT RELEVANT ANYMORE
Most Helpful Guy
Yea. Just be like "hey I'm srry about earlier... I was tired" etc1THIS IS NOT RELEVANT ANYMORE