My DH works in a job that requires him to work two weekends in and two weekends off, long days finishing at either 6.30pm or 7.30pm. In the past six months there have been two opportunities for promotion which would mean one weekend per month. He choose not to apply both times despite having a really good chance at being successful.
I have something coming up this week that if successful I have promised myself a hair make over. My way of rewarding myself. There is only one hair dresser that I would go to and she doesn't usually work weekends. However by some miracle she has offered this Saturday. I snapped her hand off as I have never managed to get a weekend appointment before and it's the closest appointment I can get to the Thing that I am rewarding myself for.
DH is very upset with me because he is off work and thinks I shouldn't book things on his weekends off as we only have two per month that we can spend together.
I think if he was that bothered about spending weekends together he would have applied for the promotion. We do lots of nice dates so not like we don't have quality time together. This weekend all I would be missing is the food shop and the gym. I manage to do the food shop alone all the weeks he is in work so it's not like I am being unreasonable leaving it to him either.
So - YABU - you should plan around DHs shifts and spend time together if his work allows.
YANBU - It's one Saturday, not the end of the world.
I don't want to drip feed so will add, this time my hair will take a long time, maybe 6 hours so most of the day, going forward it will take much less time and I can go for evening appointments. It's not like I am committing to regular Saturdays in the salon.