I have a very jealous, possessive and obsessive of me college mate. He's the male best friend who's been in love with me secretly for 15 years, and currently in a same sex relationship, bisexual or pansexual. And he'd be jealous of any guy who'd dare approach me, even as friends. I think for people like him, it must be very tiring and depressive being so jealous, obsessive and possessive all the time. I don't really envy him. I pity him personally TBH here.