Find a partner for yourself which looks similar to Crush, replace their wardrobe with virtually identical clothes to Crush, along with haircut, perfume, etc.
Constantly visit shops close to Crush’s house, so it’s “coincidence” when you bump into Crush and Partner.
From there, before they can talk their way out of an awkward situation, joke about how they look like twins, and that fantasy has always appealed to you.
Find a partner for yourself which looks similar to Crush, replace their wardrobe with virtually identical clothes to Crush, along with haircut, perfume, etc.
Constantly visit shops close to Crush’s house, so it’s “coincidence” when you bump into Crush and Partner.
From there, before they can talk their way out of an awkward situation, joke about how they look like twins, and that fantasy has always appealed to you.
So uncomfortable. Yes.
“Accidentally” send texts to Crush intended for Doppelganger, carefully constructed to demonstrate how good a partner you are.