Hello there!
It would be a Mental Task.
Hope This Helps You!
Good Luck :)
The best time to be treated for STI. A person should seek testing/treatment the first moment the suspect having STI
It would most likely be Bi-polar disorder. It has to be over a long periond of time. Say if she was in the hospital for a monthe she could be depressed for let's say three weeks before she was happy again for two weeks. that would be bi-polar.
In this situation you should report what you have seen, get an adult to deal with the problem. You would not want to interfere yourself, just because it could be hazardous.
As for the partner question, just find anyone else to answer and write what they say