Then you realized you were overreacting and you apologized for harassing him.
You’re just really worried about the possibility of cheating. Damn, you feel asleep the night before with the scary thought of you falling for someone that resembled him. And how you would feel so upset because that guy that you ended up falling for or cheating with or whatever was only picked because he reminded you of him.
You’re scared about him, but you’re also scared about you too.