Am i a slut? What’s wrong with me

Ok so I’ve been in this relationship for 5 months now, Nd this kid isn’t like anybody i ever dated. He makes me feel so safe, loved, beautiful, he makes me feel like a queen. He’s everything thing i wanted in a man looks (except he’s a little shorter than i go for) and personality wise.

But recently i have been look at this other kid in my group at school like he’s cute and i would date him and i find myself wanting to talk to him to but the thought of leaving

My mans scares me, i hate the thought of it i feel sad.

What’s wrong with me?