Honestly I feel like this question eminently encompasses the vast majority of Marco’s character.

Oh man, I like Marco a lot. I like them ALL a lot more than I thought I would. Ah crap looks like I’m adopting the whole lot

MY KIDS, I LOVE MY KIDS, THEY’RE SO WONDERFUL, I LOVE THEM, JOIN ME IN ADORING THEM ALL

Oh GOd. Ax is one of those HONOUR people

Yes.  Yes he is.  It’s kind of an Andalite Thing.  Ax bleeds honor and Cinnabun icing.