that domane looks like a very nice bike. I prefer the endurance geometry, not as bent over racy and probably more like your hybrid riding posture. although at 40 you could probably deal with the racier geometry. The Domane is an expensive rig, you could probably get 90% of the bike for less money, but that would be a very nice bike.
Like someone said think of it as an extended test ride. If you really don't like it or want something else sell it and switch to something else. think of it as a life experience.
I have a gravel bike too but that is a different kind of bike. One advantage of gravel bikes is the relaxed geometry. An Endurance bike is probably not too far off.
So you will have a hybrid, ebike, high end carbon, all you need now is a recumbent. Recumbents and ebikes piss a lot of people off on this site for some odd reason.