The opposite sex can get together and be together happily. It must be that the man and woman have something in common in some aspects, so that neither side is willing to give up on each other.
Lovers generally refer to the opposite sex with an emotional basis outside of marriage. Part of the existence of this opposite sex is because of the existence of interests.
However, most of the opposite sexes have emotional foundations. Otherwise, no matter how big the interest relationship is, it will be difficult to maintain long-term lovers, and have no emotional foundations, often come quickly in the end and walk faster.
So the lover who can be together must be mutual recognition of both parties with values.
For example, I admire your talent, like your temperament, be willing to listen to your voice, want to listen to you, etc. These are the reasons why each other attracts each other.
And the other party is willing to like doing this, and is willing to have such a person around you who can talk to, so that you will have a beautiful feeling when you are together.
In other words, lovers of the opposite sex are spiritually connected to each other, so that they can achieve lasting attraction.
People with the same values, and their personalities and tempers are similar, then the relationship between such lovers can last for a long time.
The first long-term condition between lovers is mutual understanding and recognition of values.