My friends boyfriend of 2+ years fell for his coworker "unexpectedly." Does he really like her?

I have a friend who was in a committed relationship for over two years. Of course they had their ups and downs, but what couple doesn't. I will say, the boyfriend is the definition of a narcissist and my friend has truly lost herself. During this time, their boyfriend began to open up to a female coworker and developed feelings for her. He expressed uncertainty about whether these feelings were genuine or merely emotional. My friend decided to end their relationship. Immediately after, he moved the female coworker and her child into his home.

My friends boyfriend of 2+ years fell for his coworker "unexpectedly." Does he really like her?
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