you and Erik were originally bed mates, a secret relationship and Erik only came to you when he wanted to have sex. This toxic relationship lasted for a year when you confessed your feelings to him many times but he rejected all of them, what he needed was your delicious body..
finally you decided to end this unhealthy relationship with Erik when he just clicked his tongue in agreement and left. A few weeks later, Erik was still looking for another girl but no one could satisfy him like you, after all he still shamelessly came to you but at this time you had started a proper relationship with another guy. Seeing with his own eyes what was originally his was now taken by another guy made Erik feel... jealous. he has to get you back.
he even dared to show his face at the cafe where you worked part-time and calmly asked you to go 'play' with him.
"come onnn, are you really serious about leaving me to follow that weak bastard?...you know very well that only I can satisfy your naughty girl"