Is it normal to get over your sex buddy?

Its like breaking up with your bf, only this is breaking up with my friend w benefits. I feel like Ive done better while he was just a fwb and so thats why I feel like ending it with him. Whenever we hang out, I have no interest in hooking up with him anymore when he still thinks were fwb like Im always going to be here for you to f*ck no matter what. Honestly I thought it would be that way for a long time too, but apparently you can also get over your fwb and I am soooooooooooo over it. Because Ive been with better guys, hes just...whatever to me now so it only makes sense to find another fwb that is up to the level of those guys. Im just having trouble on how to express myself to him on how I feel, I pretty much just wanna say Ive moved on and hell portray that "i dont care" attitude. Ive been with him a lot aside from f*ck buddies that I know how he is and how in denial he can get. I hope he understands though.