Am I sexually frustrated or just lonely?

i haven’t been in any sort of official relationship for quite a while, although i’ve had a few “things” with a couple people. one of the people (an “ex”, if you will, although we’ve stayed very close and are still intimate, but just not dating) isn’t living around here at the moment and i have a couple other people that may lead into something, but for the time being there is nothing (relationship or sex-wise) taking place with either. i know this may be one of those things that i have to answer myself, but i was wondering how it appears to others what i am going through. do i miss sex? of course, at this point in my life i must admit that that’s bothering me a bit, but i also crave a relationship. i miss having those components specific to a relationship, like cuddling, hanging out all the time for no reason, going on dates, what have you. (that don’t come along with simply hooking up). do i miss a relationship because i miss sex and i connect the two, or do i really just need someone to be with?