A sense of pride, it is difficult to give in to each other.
In addition, there is a mutual worry and suspicion:
The boy is handsome, and his girlfriend is afraid that he will be merciful everywhere;
The girl is beautiful and her boyfriend is afraid that she will attract bees and butterflies everywhere.
If the two sides can't have a good tacit understanding or one side gives in to the other, it will be difficult to go far. After all,
I still pretend to be lofty. When I am in trouble, there is a kind of "leaving you, there is a whole forest outside."
Psychology. It's hard to compromise.