This is their version of flirting

I love how Matt is such a emotional train wreck of a human being that Frank looks like the sane one when you put em together

Once Frank marries Matt, he gains another alias

You know it’s love when he shoots you with a tranquilizer dart instead of regular bullets. 

Matt sensed Frank reach for something and was just like “ Can’t I say 3 words without you pulling a gun on me” but then Frank just took out Matt’s Billy club to return it.

another thing I love about their dynamic is Frank using all these nicknames for DD and then Matt’s all like “Frank”