Girl friends

You are a single man. Think about your close female relationships. Of course, first of all, you have a mother and maybe a sister, your family, you share with them a unique kind of relationship that for this purpose is not interesting because of incomparability.
Then you have everyone else, but I want to talk about only two groups:
1) Your best female friends: These are women that you were attracted to when you first met but over the course of some time the sexual energy was replaced by a deeper friendship, meaning these are the women you talk to about anything, about women, your insecurities, your questions about the mind of the female gender. It is such kind of situation that a romantic or sexual relationship with them seems like a distant memory, something now you would prefer to avoid, so as to not risk endangering the fruitful sharing of ideas you have in conversation with these women.
2) Your exgirlfriends: These are women that at some point in the past for a considerable amount of time you were in a monogamous sexual romantic relationship. You felt a strong happiness and comfort at that time and they were your anchor though not necessarily your confidant, they were the most important woman of your life, the uncomparable, you loved only them. Then after the break up they steadily became more and more meaningless, sometimes you wonder how could you have been with them for so long, until you conclude that in fact you had nothing in common.
Now does this make any sense? It has to of course because this is normalcy. But what if you could follow a more difficult yet more true way? What if instead of sexual involvement implying define eventual separation it meant friendship and what if non-sexual relations with women you deeply cared about would be allowed to fade as fast as possible faced with non-responsiveness?
What if you could be friends with whom you once loved and respected and be able to let go of who you admired but did nothing to complete you?