Roger the alien gay

Has anyone else noticed a shift in Roger's sexuality? He used to be portrayed as being pansexual now he just lusts after dudes. I always understood actual Roger to be mostly gay. He could appreciate Francines beauty for instance though. I guess when that alien crash landed that seemed like a female.

Klaus and Roger engage in a sexual relationship in "Kloger", but Klaus breaks it off when Roger starts to want to act like a real couple, as Klaus was only interested in the taboo aspect of sneaking around the family for their relationship.