SecretBase posted...
Uh, yes it is. It's entirely possible for someone to just not have a personality suited for intimacy. Happens to straight guys a lot due to the expectations they generally face with regards to assertiveness and the like.
Naturally having a relatively low desire for intimacy is quite a bit different from actively wanting sex and relationships, but failing to get it.
And knowing how and when to be assertive when appropriate is a skill that people should and most do develop. Passive people might not get it as often, but they still usually manage something of a healthy sex life precisely because they can adapt to a given social situation when needed without feeling like they're compromising their core personality.