Derek could only look at the girl whom he liked kissing another person.
He's not a masochist. He just wanted to make sure Iris would make the right decision for herself not because she's being forced.
The two broke off the kiss and Iris was clearly panting.
Iris could only look down while Alice was glaring at Derek.
"I guess you could leave now." Alice told him.
"Iris...I'll go now. Remember, I'll always be here for you if you need a friend." He told her then turned his attention to Alice and spoke, "Alice...you win now...but...if you'll hurt her, I'll do everything in my power to get her from you."
"Don't worry. That would never happen. I'll make her happy as long as I can. But if I failed to give her the happiness that she deserved, I'll set her free." Alice reassured him.
"It's good to hear that. I'll mark your word." Derek decided to leave as he knew there's no room for him to stay.