How do you cope with unrequited love for a flatmate as a guy?

I know men fall in love way easier than women, and women never do, especially with their flatmate.
I had a bad case of it. I am forced to live with her as it's a prepared place to live. And I killed my feelings.
There are still times when I am just aroused, agitated, angry and stressed about looking at her.
But now it's like I am rude to her.
So I try not to talk, those are the feelings which went numb into anger.
We did reconnect again but now it's not the same, it's never going to be same
How do you cope with unrequited love for a flatmate as a guy?
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