His relationship with this girl is really weird. I've seen plenty of gay guys with female best friends, and I've had best friends myself, but I've never seen anything like this: they travel together like a couple. They take multiple trips abroad, always flying business class, staying in expensive places. She wears high-end jewelry and gets luxurious gifts that I suspect come from him.
I think they might actually be a real couple, and he could be bisexual. Anyone from South America knows that a woman with her looks, high socioeconomic status, and spending power would hardly expose herself publicly with a porn actor if it were just friendship. That's why I think they're probably dating.
After all, who funds this luxurious lifestyle for a "friend"? Seriously, who does that?They've spent weeks together in California, Europe, and other places. She doesn't seem to have an active enough modeling career to afford this lifestyle on her own – unless she has another source of income, if you know what I mean.