I have a crush on this guy at work but he’s married. How can I get over these feelings?

I’ve been working with this guy for about a month and I recently started to have a crush on him. He’s a very sweet guy and I have a speech impediment and he’s very patient with me. I remember earlier this week, he asked me how old I was and I told him my age and he said that I looked younger than my age (which I don't know if he was flirting or not). Another random thing I remembered was when I stepped out of work for a while and came back, another coworker told me that the guy cleaned up my mess while I was gone and was telling me how much of a sweet guy he is, which I found kind of weird because we’re supposed to be helping each other out. I don't know if he likes me nor should I care because being a home wrecker is the last thing I want. What should I do?

I have a crush on this guy at work but he’s married. How can I get over these feelings?
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