No way out but me

The pub was packed with guests that night. Though it did not take him long to find Erin. Since Eron waited for him at the entrance. 

"You might need these," the latter handed him a pair of handcuffs along with the key. 

He wasn't sure what that thing should be used for until he reached the table that Eron pointed at him. 

Erin was on the dance floor with the guy on Heidi's phone. His partner seemingly enjoyed his time as though he wasn't even existing in his life at the moment. Which was correct for the past few weeks. But even so, he doesn't have the right to flirt with other guys like that?

He angrily walked up to both. He thought that Erin would at least be a bit surprised to see him. But even as he stood in front of him. He continued to dance with the guy ignoring him. 

"Do you know him?" asked the guy that Erin was having a good time with.