Does he respond strangely when you might him who the sender of the link message became?
Have an escort card table by the entrance to the reception & arrange it with your guests name cards & favors (or you can make your favors double up as name cards). https://medium.com/@diyarbakreskort/en-se%C3%A7kin-diyarbak%C4%B1r-eskortlar%C4%B1-ile-tan%C4%B1%C5%9F%C4%B1n-3997c621369d