This whole thing between Lindsay Lohan and Samantha Ronson is cute and all, but it doesn’t take a genius to figure out that Linds is a woman of loose morals and that commitment ain’t her bag. From the sounds of it, Sam is finally seeing the light, too.

A close friend of the couple’s told The Sun, “Lindsay and Sam had a huge bust up last week at Pure night club in Las Vegas. Lindsay was flirting with a guy and Sam was ballistic. Lindsay says she loves Sam more than anything but she just can’t help that she is attracted to the opposite sex. She thinks that they should come to some sort of understanding. Lindsay wants an open relationship where she can explore her heterosexuality without feeling guilty or sneaking around.”

No surprise, really, as Linds recently denied being a lesbian to Harper’s Bazaar but when asked is she was bisexual answered, “Maybe. Yeah.”