Leonie wasn't aware of their conversation at all. No one knew Arlen is a pure devil in human form.
As he said before, he just dated Diana just because she was like Leonie. But Diana left him after knowing about his status. What a selfish people both were. But it truly hurt him when he thought his status determined who he was. That changed him over a year.
He started to ignore everyone. Logan was the only person who was with him all years.
What he didn't expect was Leonie's sudden action and her sudden proposal. He thought that she was just attracted to him. Little did he know he became her world after some incident.
After knowing her love, he didn't want to let go of her. He didn't even know when did he start to see her as a woman not a little girl...
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