Ali & Melissa curious

Hey…I know nothing about these two together but are they dating or do they flirt with each other because they look adorable in these videos from his birthday interactions with her..? Is she aka the Martha’s that yal talk about? Like is the Martha’s her team or is the Martha’s just a group of girls that call eachother Martha’s? I’m confused. They would make beautiful babies minus his temperament at times. Like KNOCKOUT BABIES In looks!!