You shouldn't have invited him out for drinks that night. You were just trying to be friendly and bury the hatchet. But as he soon as he eyed your girl, you knew you were out of the picture. He took her out back to his van to "show her something" and made
Your long distance girlfriend made a new friend at work. As soon as he heard you were miles away, he knew he just needed to be persistent. How would you even know she spent the night at his place?