My ex wants to go out for valentines day. Divorce will be final next week

I didn’t want this divorce at all, it’s 100% his choice. We have been married almost 25 years. He filed last June and almost changed his mind and decided to move forward with it early last month. It’s very amicable. We have the decree finished and our prove up hearing is on wednesday the 11th. It’s uncontested as I didn’t get a lawyer but we reached a fair settlement and custody that we are both happy with. He is still in the house. His new houses closes on the 13th next week. Not advisable but I didn‘t ask him to move out of our room until last week and we’ve still been having sex, just not sleeping in the same room. We hang out together all the time, don’t fight, I truly don’t get it but it is what it is. (We also have 5 kids)

Anyway, he asked yesterday if I want to go on a date for valentines day. I admit, a large part of me does because I’ve always loved him and still do but why in the WORLD is he divorcing me if he wants to do that?