I was afraid Marco would have some conflict with Betta if he went to Giorgio's, but we were spared from any confrontation.
Their uncle seems like a nice man, but one who's in new territory by volunteering to take in two teenagers. It probably explains Giorgio needing a shower and clean clothes.
Giorgio's kiss was quick, but magical and transformational. As Giorgio said, it was fine. Each of them thinks the other is cute and there is no confusion over one of them not being gay. It's too soon to say if this will last, but it's a good start for both of them.