It stays fresh only for a while

I have already written about the interactions which survive despite lack of proximity. This is about how these bloom and add to our happiness.
There are a few attributes of an interaction - mutual respect, feelings, affection and responsibility.

Mutual respect is an essential attribute of an interaction. No interaction can survive for long in a free environment without it. Then we have feelings. Feelings come in different shapes and sizes. Sometime they are gut feelings, sometime the voice from within and sometimes in the form of love. With feelings we start developing affection over time. And that leads us to become responsible for the other person.

A joyful interaction can progress in different manner as well. For example you are officially responsible for someone ( say as a tutor ). That may lead to feelings and affection and mutual respect. Another example is where feelings commence an interaction. You meet someone and have some feelings. That may lead to affection and mutual respect and becoming responsible for that person.

A lasting interaction, though, requires mutual respect or mutual feelings. Any one sided attempt to have a relationship due to affection or responsibility alone is futile. As futile as cutting a branch of a tree and keeping it in water to keep it fresh. It stays fresh for a while. It stays fresh only for a while.