The answer is medical model
The medical model is often used to identify whether the psychological disorder is caused by biological factors.
The treatments that are used in this model will include hormonal therappy, Brain surgery, or using various types of drugs to influence our nerve system.
Orville Wright piloted the powered airplane.
He was a renaissance mathematician and astronomer
Risk management.
Hope this helps! :)
Maybe you should try contacting his/her parents and seeing whats going on or unfortunatly he could've broke up with you without actually telling you he broke up with you.