self coupling
The idiotic made up term someone uses to describe their self when in truth, they are just too conceited to admit that they are incapable of loving another, so they give up and dignify their loneliness by "deciding" to remain alone.
That idiot, Emma Watson, loves herself so much, there's no room for anyone else in her heart but herself. She's self coupling...with...well...herself...(her and her partner must burn through dildos like a normal couple goes through condoms!)