I can't stop thinking about our family friend and I don't know what to do?

I think im in love with my family friend ( 31M) . Both our families have known eachother for years like since we were kids. I never had any romantic interest in him until last year when my feeling slowly just grew. I moved in with him and had lived with him flr 8 months. We started spending a lot of time together and ughhh he's just the sweetest soul, he's extremely kind. Not just for me but for his friends and family in general. The more time i spent with him the more i noticed his smile, his eyes, his excitement when he talks about something he's interested in. We would cook together, and just go on a long drive just cause and go to church on sundays. Anyways the past few weeks he's been working on his car (his hobby) , id just spend an hour with him and just talk to him, is lt like super weird I'd fantasize about being intimate with him when he makes this sound when he's working on his car ( im sorry if it sounds weird) the feelings have honestly started to take over my everyday life. Like what's a good way to just stop feeling this way because i can't f*** up our family dynamic.

I can't stop thinking about our family friend and I don't know what to do?
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