You neither have facts to prove she is a good person. Where does that leave you? Im not saying she is a horrible person. Simply stating something i heard from many people. I just take you as the kind of guy that would leave a perfectly good marriage to live a life of schmoedom.
You cannot build a solid case based on nothing but hearsay.
The thing you have to understand about relationships - business, personal, or otherwise - is that people tend to stay in them if there's some payoff. That's our nature as humans, so in that regard, I'm really not any more or any less selfish than most anyone else out there. The people who do not wish to associate with Hayley for whatever reason ABSOLUTELY have that right. I'm not taking that right away from them, nor am I forcing Hayley upon anyone (aside from a few seconds of video). But their decision not to like Hayley has no bearing on my feelings about her. I'm allowed to like whomever I want, just as they are entitled to dislike whomever they want.
When the cost of hanging with Hayley becomes greater than the benefit from hanging with her, then we'll part ways. But for now, she makes me laugh and she's good for business, so I'm quite certain we'll be working together again in the future.
A lot of times, when people gossip, they're just venting. I don't know who you know or how many people you know, but if you live on this earth long enough, you're going to have conflicts with many people that you were once tight with and then you'll be laughing and joking around with them later on, once the dust settles. People need to get stuff off their chests, though, and that's fine. If you don't want to party with Hayley based on what you've heard, that's fine. But you cannot make that choice for anyone else but yourself.
As for your other point, I'm not so sure that I'm the marrying kind. I prefer flings in large part because I don't like the social policing that comes with what are often termed 'exclusive' relationships.