I’m so very sorry this happened to your poor baby!
The only way I could respond to this is by being completely honest with you. I would be made as hell. You had previously told him not to do it because you knew anything could happen to a defenseless animal unsupervised and tied up. This was not an accident this was negligence. You obviously love your fiancé so I would definitely seek some couples counseling as Sil asked about. You need a safe environment to let him know how this has affected you and your concerns for the future. Honestly I don’t think this determines what kind of father he will make. Some people just don’t see a pet the same way as others do. Terrific fathers don’t have to be terrific pet owners as well. I think it helps people as a whole but not everyone was brought up that way. I hope your children have the joy of a pet in their lives and I hope you are able to find a way to be at peace with your future, big hugs,,,,,
Lynn, Tankie’s mom, forever