Or, if there's a way to just change his process, have him finish his day, walk in seeing them getting along, but instead of saying anything he heads to the kitchen... Then, he's within the action, rather than coming in after work when everyone's possibly asleep.
Just a little tweak in your post should place him in the time frame... Don't have to go drastic and delete.
And, if I can do this cause I'm doing it for every RP I'm in, and some of them are pretty major; I'll write up a quick summary of the events in RP time. That way, we'll have a clear view of how the activity and conversations are running and can add in our post in the right time frame. It does help at times. If I can keep it going, I'll be a big help for all.