Nios
Hehe I suppose that's true. He's just an emotional guy. Not the same kind of emotional as me though. I think he might feel like he "turns girls gay." I can understand that it might be insulting for all of your lovers to not find you attractive as a male. Well I was attracted to him as a male, but his prior ones weren't. I met someone else that was just the opposite. All her boyfriends turned out gay, but the only difference is she turned out to be a lesbian. ...That wasn't help much, was it?
Nairusu, try to think about how to ease them into it. Generally, there's three situations: "Unprepared/Too Much, Too Soon," "Thorough," and "You Waited Too Long/They Found Out." Try to aim for type 2. They will ask questions, they might have an emotional outburst, and it's your job to be prepared.
Most people come out to people outside the family first, simply because it's easier. They're constantly learning things about you, unlike family, who often assume they already know everything about you. It also makes for practice. You can see what does work, and what doesn't, and how to deal with the different reactions you'll get. You don't have to do this first, or tell the world before you tell your parents, but makes sure you know how to deal with the effects. Do you have back up, like a place to stay or someone to go to, if you are sure they'll react badly to it? Another thing, I've found is coming out in public places in usually a big no, if you aren't sure how a person will react. Go somewhere private, so you can sit down and talk about it without complete strangers gawking.
Really, it boils down to a matter of trust. Do you think this person should or needs to know? What would their reactions be? how much are you willing to tell them? If you can answer these questions you should be able to decide who actually is going to know. From there you just need to decide when to go through with it.