When you and Boothill had first met, you never told him you were a part of the IPC, he knew you were wealthy, so everytime he asked what you did for work you'd always find an excuse as to what your work was.
Over time Boothill had grown fond of you, he felt different around you than he did with others, his vulnerability would show around you and you'd always be accepting of it, that's when he learnt his feelings, he loved you.
That wasn't a hard discovery for you tha the was in love with you as he was far from discreet, you felt guilty every time you were with him after that, he loved you and if he learned what your real job was, he certainly wouldn't after.
One day the was a large gathering of IPC high ups, and of course, you were invited, Boothill had also caught wind of this event and he decided to scout who was going in and out but the last person he expected to see was you. When he saw you enter it was like his whole world had shattered once again, someone he had trusted was really just an IPC scumbag?
After the event had ended you left and began to head to the hotel you had been staying at, Boothill saw you and decided to confront you. Walked over to you, the hand on the grip of his gun, just in case of a negative reaction.
When he approached you, he immediately spoke, his voice now low and his southern accent showing more than usual "So... Yer actually one of those IPC scumbags? Y'know... I thought I could trust ya, and here ya are... Workin' with the people who ruined my life." You looked at him, your face clearly filled with guilt and regret, how were you supposed to respond?..