I am concerned regarding your title. You titled this with the comment about getting “the man I love in trouble”.
I hope you will go to some counseling or seek help to overcome this affair. Although you may have developed feelings for him, you will need to move past those. He is not available. He has taken vows. He is ordained. He should certainly not have acted on any attraction he had to you or developed an affair with you.
I am sorry that you were pulled into a physical relationship with a priest and now have feelings of love for him.
I hope that he does not have a pattern of these relationships that are unknown to you. You say you don’t want to “get him in trouble” but you should consider that this may be a pattern with him. You may not be the only one he’s had or will have a sexual relationship with. You should consider telling someone at the diocese-- not so he “gets in trouble” but so he gets HELP. He needs counseling, he’s transgressed his vows and started an inappropriate relationship with a parishioner whom he should be shepherding. There is an uneven power dynamic in play.
If he was counseling you or helping you with personal issues when this affair began, that’s even worse as you were in a vulnerable state. (You don’t need to answer that, just think about it).
I do know that a former priest from my own parish- who was gone before I moved here- had several girlfriends in various places in our diocese and another nearby dioceses. And the one he’s now married to (he left the priesthood) was a teacher at the parish school where he was pastor, and it all came out when he got her pregnant. Frankly, I think he was a slime ball, running around with several women. He still lives in our diocese although now laicized. He should have been removed from his position and received counseling, but because no one at the diocese knew about it at the time (although plenty of people in the parish caught on) this went on for several years and created scandal among the faithful.