Unexpected means it was something you did not "expect" to happen such as a car crashing into you which means this is wrong.
Unfair is any injury.
Unnecessary means it was never needed and could have been prevented/not done therefore unnecessary is the best term.
Answer:
below
Explanation:
you may get addicted
you can feel too comfortabe and post things you shouldent
you can put it ahead of ther things
It can give a person an emotional impact with the person they are sexually active with. They could have strong feelings for that person and want have a meaningful relationship with them. But that person could not want the same things and it could lead to heartbreak and hurt feelings.