Would you get along with your parallel-universe self?

Sure.

The “Mirror, Mirror” universe Skald would be nice and naive, as I’m the evil one, so I could either unburden myself of my troubles or betray him and take his wallet.

Contrariwise, a Skald from a divergent timeline would, presumably, be a lot like me and we’d join forces for evil.

If I could make my parallel-universe self do the dishes, things would go great. You’d always have someone to laugh at the worst of your jokes too. If you thought it was funny, he would too.