Don't talk authoritatively about sex if your being is completely lacking the "firmware" for performing this function. This is not to dismiss you, belittle you or label you as a freak. You are not any of those things. You are you. You don't do sex, which is ok, but you have absolutely no insight into what the "need" for sex is, because you are in a minority with a differing psychological make-up that doesn't need it.
I don't know what life without sex is, because my firmware compels me to seek it out. Sexual beings get pretty unhappy and frustrated if their want for (non-solitary) sex is not met. For sexual beings, the togetherness, the physical act and the release it gives, is something we simply don't want to do without. We sexual beings might not die if we don't get sex, but our quality of life greatly diminishes.
To give you something workable, imagine it like this: Denying sexual beings their access to sex (probably) makes us just as unhappy as you'd be if someone were to constantly badger you with proposals for physical sex.