Is this considered harassment?

Every time a coworker gets angry at me she tells me her house is paid for that she doesn't have to suck dick like I do for a roof over her head,and that she knows for a fact that I do it. Is this considered harassment?

Yep and it's also called victimization and bullying. It's none of her business what you do just as it's none of your business if her is house is paid for etc. You need to get proof of her actions and take it to your supervisor or your HR dept.