I know a lot of people in this thread will tell you that your fiancee is a piece of shit coward that couldn't possibly be a responsible husband or parent, and if you ditch him and start dating a MMA master all your problems will be fixed.

But that's bullcrap. You have no idea how he'd react to other emergency situations and I don't believe you're really concerned about the safety of your future children because of him.

The real problem is that you need to process the traumatic incident you went through. Your boyfriend is not to blame for what happened and trying to get him to admit it was all his fault and that he let you down will not make what happened disappear. You are not afraid of the dark because your boyfriend ran away.

You need to speak to him about this and not your judgemental mother. Not about whether he did the right thing but how you move past this. How you start trusting him again, how you feel safe at night again, and how he deals with the enormous shame he is no doubt suffering from.