need help finding an ff

hey does anyone know or remember this FF written ages ago where Arnav needs someone to pretend to be his girlfriend infront of his family so Aman asks him to hire an escort... when they reach the restaurant to meet the escort, Arnav mistakes khushi to be the escort and for some reason she takes up to job and moves into RM and there’s a scene of them swimming and one where she admires a red dress.. would love it if anyone could help out x 

When I met you by rtilicious