I feel sorry for you SUP widow,
I would have been a SUP widow myself , but fortunately I tried SUP for more than 20 minutes and now my other half and I have a ball out on the water several times per week together, rippin it in the big waves, with the sharks looking on.
He loves it, I love it. We are very, very lucky ! Today was a priceless Qld winter day on the water. Wouldnt have been anywhere else...
Hopefully you continue your enjoyment of the water on other craft (hopefully not jet ski

i) Good point about upper body strength, sometimes it could be an issue.