Need advice and enlightenment on this unhealthy "bromance"?

My husband made a friend less than a year ago. This friend has inserted himself into every aspect of my husband's business, hanging out all day at the shop, has manipulated his way in so much that he's let him have after hours access to the whole store, our computer etc, and now has his trailer parked in the back hooked up to our utilities and even tho the police hasve told my husband the trailer has to go, he won't make him move it. He *the guy* struts around acting like it \s his store. He uses foul language and has made sexual inuendos to me, disrespected me by touching me and now is cyber-harrassing me. I have complained bitterly since he showed up, I have told him all of this and we have fought over this "friendship" to the point where I feel I need to leave the relationship if it doesnt end and my husband still keeps him around and hangs out after work with him, but tells me he loves me more than anything in the world. He said today he would "probably" stop the socializing aspect if I want him to. that means nothing to me. if I leave I lose the home we've built and everything we've worked so hard for all these years. I don't understand the allure this guy has over my husband. Maybe someone can enlighten me.