After Jennifer Lopez’s string of shattered love-’em- and-leave-em romances, sources say Hollywood’s hunks are avoiding the domineering diva like the plague. Insiders snitched to RadarOnline.com 55-year-old dump master J Lo has been branded so toxic that no available guy in Tinseltown wants any part of her. “She’s made it clear that if you want to date her, you’d better be ready to treat her like a queen and deal with a suitcase full of drama,” snitched a source. Even Loper admits she’s hell on heels. “I am somewhat of an expert, you could say,” she said. “Not so much on marriage but on wedding…