Kudos to you Trexy for being able to make decisions based on the reality of *what is* and not some fantasy of what you *hope* is true. Too many ppl do the latter and waste so much time in bad relationships. You are well on the road to self-respect.
If I raised a reasonable concern and someone I was dating refused to acknowledge my point and then insulted me, I'd dump him as well.
Its not jumping the gun, its making a good decision based on available data.
Second thoughts can generally be amended with judicious action; injudicious actions can seldom be recovered with second thoughts.
--Cyteen by C.J.Cherryh