Would welcome any input as to what may be the reasons, what am I doing wrong ?

it could be that I become a little lovey dovey, the sex keeps getting better, but it goes from I want you to fuck me everywhere to going to bed without initiating contact or stuff like that. I'm just worried it will keep getting worst, but am ready to push the termination button if I'm being friend zoned in a relationship.. its just sad that the most attraction is in the beginning and where the girl dosnt know where I stand.

did someone find a middle ground? or you have to keep the girlfriend in a dating mindset, or date mkre mature women?

would appreciate feedback and personal experience