Scared of Liking thoughts

So recently I have been talking to this guy and I really like him and for the past week I felt really good and happy about it, but then a sneaky intrusive thought popped up about what if in the future when and if the time comes to sleep in the same bed, I inappropriately touch him while he’s sleeping. Now I’ve struggled with sexual intrusive thoughts like that before so my brain just kept reminding me of how that thought felt the last time it came up, and the thoughts of sexually harming this person started snowballing and making me feel worse and worse. I spent most of the day crying and panicking wishing my brain could just shut down, and now all I want to do is hide from this person so I don’t get the chance to hurt him, which makes me feel even worse because I had been feeling so good about him just the other day. I was just wondering if anyone else had experienced this and if they might have any insight

Why is my mind saying I should say my thoughts out loud and that it will be ok, I don't want to because it goes against my beliefs and it freaks me out because my mind is like you've done this and this an other bad things this can't hurt you, saying it will give you peace and it just randomly started yesterday and idk what to do. It's like I have no will power to want to stop it's like my mind wants me to say it and idk what to do.

Am I the only one who, when an unwanted thought appears, the heart starts beating very fast??