Congradulations for getting out of the relationship! I have not been involved myself but had a close friend who was, I asked her why she stayed as long as she did.She explained that everyone sees the bruises and thinks that is the worst but in fact it is the mental abuse. The bruises heal but it takes a long time for your self esteem to heal, go talk to a professional. It is all about control, he no longer has that good luck with your studies. This is your past learn from it and move on , it is of no concern to employers.