Depending on your reason or intentions on why you want to get close to that particular person. If you're shy, and using a mutual friend to help bridge that connection, I don't see a problem. If you're deceitful, and want to get close to someone who doesn't want to get close to you, or you have 'less-than-positive' reasons to want to get close, then I say no.
Yes, togetherness is a noun that means the state of being close to another person or other people.
It originates from: The Midsummer Night's Dream by Shakespeare - if two people are together with one person's cheek right by another person's cheek (jowl), they are pretty close indeed.
Your throat will get cut in your sleep.
To let the reader become close to the narrator
People have to consume contaminated food in order to get food poisoning.
they lived close to one another
repeated close quarter exposure to infected person
absolutely you are.
Isaac solved the problem of people not seeing the stars as close. He invented the reflecting telescope.
Demisexuals, like myself, generally don't feel what most people describe as "lust". We can have a sex drive or libido, but feeling lust towards a person isn't really what we do. If a demisexual has a close enough relationship with another person they may become sexually attracted to them and may even feel "lust" for them, but how strong a demisexual's physical attraction to the person is depends on how strong a emotional connection they have and how much libido the demisexual has.
Depends how close you are to that person
Yes, in a sense that person does become a defacto president.