Not trying to be a dick, but did Sunny have a rough childhood or something? I just odnt understand how someone could sleep with so many people and consistantly cheat on her "soulmate" like that. I like Sunny alot, shes a sweet heart, great to her fans and a very personable person. She is one of the VERY few women who actually liked wrestling growing up. Shes a gorgeous woman, still is. In her prime, I put her in the top 5 hottest of all time. Although I do wonder if Candido knew about her cheating and just kinda either ignored it or got off on it(swinger/cuckold).
All stories state that Sunny had a good early family life. The problem was at age 20 she was on TV and was a "star" she got a lot of success very very quickly. By age 23 she was in the largest wrestling company in the world and was famous.
As I'm sure you know because it's obvious most people in their 20's just want to party, have fun, do drugs, have sex etc etc. When you throw in the fact she was young and probably quite impressionable of course she was going to have major issues. By her mid 20's this woman was a millionaire, most downloaded woman of the year, A TV Star, Touring the world etc etc.
Then Candido died and again, Sunny was quite young when this happened and he was all she had so that is why the long spiral has happened. She did the Wrestling Vixxxens thing in 01 before Candido died presumably because she blew all her money. Wrestling Conventions picked up so post Candido she had a good way to make money but it's now 2013 and it's all finally caught up with her. She's 40 and refuses to leave the business. Still has a drug problem (Allegedly) and only dates people within the business not to mention all the public appearances she makes.
This leads to her having to do bed photos with guys like Todd to pay the bills and basically whore herself out (In a soft core kind of way) to pay the bills. It's definitely a devastating story because she could be living in a beautiful home somewhere with a nice husband and some kids with a shit ton of money in the bank but she doesn't want to stop being Sunny.
As for if Candido knew. A lot of shoot interviews suggest that he had to of known but he loved Sunny so much that he just would never confront her about it. Kind of like the Johnnny Nitro/Melina Perez situation from a few years back where wrestlers would sleep with Melina but Nitro refused to do anything about it.
I think Kelly Kelly is going to be the next Sunny. All the same characteristics exist between the two of them.