Hi and welcome,
How long have they been a couple? and how long have they been open?
Does she have other partners ?
" I feel like yelling at her "stop copying me"" wrong person if he's the one who started this ball rolling .
I'd tell him it creeps you out.
Is she smaller than you ? ...just thinkin mini me
or husky me
or earthy me
which ever fits best. Joking around like that might kill it off .