Confused??

So, I'm a dude, right. But my best mate, Charles, is like damn son. Not that i'm gay or anything y'know. Cause I like women. I've dated women. But Charles, he's like nothing I ain't never seen before, right. And my kid brother, he's real smart, so he knows about this kinda stuff. Not that I asked him about it or anythin. Cause I'm not gay. But anyway. So Charles is like into dudes and ladies? I dunno how that works but is that like possible? To like both? And what if I've only ever liked ladies but now I like dudes. Is that normal? And me and Charles have been tight for like what, 6 years? And he's, god, he's a real subjectively attractive (only subjective cause I'm not gay) fella, and I mean like 'make you go weak in the knees with his smile' kind of attractive (not that I would know, cause I'm straight) and I sure as hell don't deserve him y'know. But I mean, is it like an unnatural thing if I do like dudes? I don't think it could be because someone like Charles could never be anythin' unnatural and gross. So if he's y'know, whatever, could whatever this is be a good thing? Cause I asked my friend, Benny, right, and he's a real trust-worthy friend, and he says it's unnatural and gross. And y'know, the first time I met Charles, he asked me out. But I said no. Obviously. Cause I'm not a fairy. By the way, is 'fairy' an insult? Should I stop using it? Anyway, but is it real bad I keep thinking of what could've happened if I said yes? And Charles is a real looker, y'know, like he's got the whole 'blue eyes, black hair' thing, and I mean we love each other, obviously we do(No Homo). But he's really open about it? And he says 'I love you' to me with that look in his eyes(is that gay?), all the time and my other friends laugh about it and I just tell 'em to screw off cause no one speaks about Charles that way. But I'm startin' to think there's somethin' more y'know. (But what would I know, I'm just a bitch ass white boy) And I don't know what the hell I'm supposed to do anymore. Because Charles, he's amazing and if it is whatever, then for once, I might just have a shot in hell. But now I'm just confused cause last night, Charles got like real tipsy and he said somethin' to me I ain't never gonna forget. (But it's kinda private so I'm gonna leave it out). And next week, My friends' are gettin' married and Charles and I are invited and there's gonna be slow dancing and everything. And y'know Charles was the one who taught me how to slow dance, behind closed doors and shut windows (not that we're gay or anything), Sammy walked in on us once too, god knows how those rumors started. So, the thing is, the bride want me and Charles to lead the first dance and Charles said sure but, what if people think i'm gay. Not that there's anything wrong with being gay, I think. Cause Charles might be gay, and if he is, then I don't see how it could be a bad thing because it's Charles , y'know. But like, what if I am attracted to Charles. Does that make me gay? What about all the women I've dated, then. I've always been a sure thing kinda guy, I'd make a decision, and I'd stick with it come hell or high water. And I've decided on Charles a long ass time ago. And I'm with him till the end of the road, and he's the same with me, y'know. But there are so many what ifs, and I'm just scared. No, I'm terrified. And I'm just really confused. Also, do gays have sex? And if they do, how does it work?