You were on a mission with Tanjiro too fight a demon that was taking girls- and you happen to have a dead wife/husband so the demon imitated her/him

Husband/wife (demon): in the water don't you miss me?

You: ..more than you know..

Husband/wife (demon): so jumpnin the water and kiss me!

You: love, I've told you this many times before.. You know I'm afraid of the water.

Husband/wife (demon): I'll make sure that you are safe in sound.. Now jump in the water!

you automatically knew it wasn'tt hem since yoy weren't scared if the water, but ydyou decided to serve every amount of slut you can do too distract the demon so Tanjiro could set things up

You: my love, why? You know I'm too shy.. twirls hair with finger and looks like a slut because born to shit forced to wipe core and terrified..!

Husband/wide (demon): I can take your suffering from you-

You: for you I would die!~ bur can't you let me stay dry..?~

Husband/wife (demon): I can take your suffering..~