I lose to much space with just two, but I think you are probably right about the spacer. I think I recall seeing one with 32" height which is close enough.

Actually, since it currently has shelves, I might just get three separate ones

My experience using Bumble was great. I treated it as a background task that I want expecting immediate results from. When I was killing time, I’d swipe instead of using socials. When I matched, I’d chat briefly to see if she seemed ok, but then quickly asked to meet. Found my wife using it. My adult daughter found someone on Hinge and he’s great. I’d recommend trying apps to everyone looking.