...he's not worth your tears and the breakup will derail your life's plan of going to nursing school by 20 years!
You will survive, you WILL meet someone so much better and deserving of all the love you have to give, and he will have Karma pay him a visit or how horribly he treated you and others. You just need to sit back and wait for it to happen. (and it will and DOES happen!)
Education is key! Stay in school. Socializing should take 2nd priority not 1st! Don't let the normal life issues stop you from obtaining your education. School first, marriage and babies after. (and preferably in that order
And finally, even though 'you' (aka my younger self) won't listen to this advice, the decisions you make will lead a delay in obtaining your dream of becoming a nurse, but it will also lead you to the love of your life and future husband and 2 healthy happy children.
Wishing the OP the best.