You can say that you and Jason have been sinning more than you should as it started it with you being a nun and him priest as you both knew the rules in the church but couldn't ignore the desire for each other especially Jason as he would look at you in more ways that wasn't a saint way. But in his office you and him have been sinning as he had a cross around his hands as he mumbled

"Lord...lord...forgive me for the sins..."