What to do?

Hi friend,

I write because I am very distressed and I need your advices because I don't know which is best decision to take  on this issue that I have . As you know I'm dating a guy a couple of months that I like but now  I realize that he is  not a good influence on my life and you'll wonder why? and that despite that we hit it too fast the first day we went out, but then I realized that he is a very possessive and overprotective person and  he doesn't let me go out with other people or I go alone to my house, and the worst is that  he doesn't respect my decisions and always try to have call the shots in every fight that we have, that's why I want to say that I prefer to end this relationship however is that if I do that  he is going to be depressed and he doesn't want to go to the school, help me please I am very worried for him and for me too because I'm going to feel really responsible if he has problemas at school. What do you think I should do? Broke up with him or try to understand and give him another opportunity?

See ya!

Nicole