Can I save my marriage?

[Lll54]

So, H came home from the game last night and played with S3 for a while. I was on the couch watching t.v. He sat down on the next couch, looked at me and said " So my Christmas party is on thursday"

I didn't know what to do or say. I wasn't sure if it was an invite or what? I work thursday night so that's what came out. " Oh, i see. I work thursday night"

He didn't say much. Just "oh ya"

He then said he was so tired went to the room got into pj's came out and kissed S3 goodnight and went to bed.

I dunno, if this was an invite this is HUGE!!!! I don't know how to ask him if it was or not???? If it was, heck I'll cancel my shift on thursday to go! I don't know what to do!