Is he gay or not????? Or is it customs or not????

My bf and I argue daily about customs. He's Hispanic (🇳🇮 Nicaraguan) and I'm black american. Everyday He's on the phone with all hos male friends and most of them love sending him homosexual videos and photos they joke about being gay and they hang out until it's nighttime. My bf walks around his friends that we live with in a towel and he hangs in his friends room in a towel. Is this a normal practice of hispanic men???? and he begs for anal sex even tho we argue about it. Or is he gay????i feel like he may have gay tendencies and haven't admitted it yet. He denies daily but i don't even want to sleep with him anymore out of fear of what he may be doing behind my back! Help me my lovely Hispanic beauties. What is this that's going on????