Angel dust got redeemed and he didn't wanted to leave with his one best friend that's you and you were holding his hand, singing a song or some sort, and then when you were close to the ending you let go

You: bye angel

Angel: NO NO NO NO!

When you let go, the portal opened revealing heaven it's a portal had Emily waiting for Angel to go up in heaven

You: I will see you later angel, I hope you have a fun time in heaven