Mario is simply a useless sack of shit.
I don't know whether they are Italian or Spanish but he seems to be a typical male from either of those countries.
He is a control freak, has extremely high views of himself, is as lazy as a 20 year old dog and doesn't know how to satisfy a woman.
All in all, he simply wants to eat, sleep and fuck when it suits him with no regard for her feelings. He is an oxygen thief. Get rid of him, let Carla have some fun.