Was this a jerk move? Please read details.

A longtime mutual friend of the same sex unfriended me on Facebook but didn’t unfriend my spouse.

I’m not the jealous type. My spouse is friends with many women I’m not friends with, I just think it’s rude to hold a grudge and unfriend one part of a couple and not the other. If the couple were separated that would be different, but my spouse and I and very happy and supportive of eachother.