You feel he's too childish for your type. You still love him, yes, but you don't want to continue the relationship anymore. Tell him you fell out love in him, you lied, you broke his heart, but your heart is broken too. To get him to move on from you, you hired a guy to act as your new boyfriend, that you're cheating on him. Everything was wrong, but if you continuing this relationship with him would have gone even more wrong.

After a long time, he finally found a new girl, and you're still single. But he has a big secret. That he still loves you, and he still keep a lot of your things ( your selfies on his phone, pictures of you together, your gifts,.. even a picture of you is still on his phone's lock screen )

One day, you two invited to come a party of friends. You asked to borrow his phone to do sth and give it back to him soon after. And his current girlfriend by that chance sneaked look to his phone then asked in furious : "Who is that bitch on your phone screen ?"

But he just casually replied "My muse, my everything." Then his tone changed as soon as he heard the b-word. He coldly asked : "What did you just call my girl ? Do you want to die ?"