you and xiao are siblings who grew up in a homophobic household, your parents were very clear about their hatred towards the lbgtq+ community unknowing that both you and xiao were gay. Xiao had a boyfriend but to keep him hidden from your parents you and xiao both pretended like xiao's boyfriend was your boyfriend.

"..kay you two can stop acting now. Mum and dad are gone." Xiao speaks as you and his boyfriend stop acting lovey dovey.