How to get my cancer guy bak?? EVERYONE PLZ HELP!!

Me and my cancers have been together for two years, since my family was very strict, we only seen each other like once every two months, but he never left, hes always here with me, no matter when im happy or sad i could always rely on him, he gave me everything like he could to make me happy.
But things getting harder and harder, he had a fight with my dad, and dad said to him to leave me alone, but we still didnt give up.
Last week, i found out he had a date with other girl, and he said to his friend im his ex already when we hadnt even borke up! I was so angry and asked him why, he said he had no intension to cheat on me, and i have been pushing him away, treat him like nothing, so he decided to give up, he said he cant do it anymore.
I keep begging him not to leave me, and i have been calling him but when he pick up just told me to F off, and leave him alone, im so depressed that he never ever told me to off and never told me to leave him alone, and i still havnt gave up, i keep calling him and he told me he had moved on and he has a new gf and he said his gf treat him heaps better, they met everyday, and i should move on.
I was shaking and could not think when i heard this, but the things he said just suddenly turn so sharp and i could not believe the things he said, i have a feeling he is saying this to hurt me to push me away but im not sure, im not sure if he has a new gf and move on already
I been emailing him everyday like its my dirary, but he said he is been deleting them everyday and call me psycho and said dnt wana see me or talk to me.
Please help, i cant eat i cant sleep, i lost 5 kilos already. Please and i call him he jus wont pick up anymore

The more you call the more he is gonna hate you.

He's already calling you psycho and all that. STOP NOW because you are really stalking him.

Your wrong was not let him having his space to miss you. Mens reaction to break ups is partying, another girl, then they crash.

You should of given him his space, now you probably crossed the line too much with your obessiveness.

Stop calling him and deal with it, time heal all wounds.

Ye im 19 turning 20
I jus dnt understand tat he could used to give me his life to me how could he jus turn so sharp on me in a week?

why is everyone sayin the same thing to me to give up?
is it really he wont come bak?
i would like to give him space, but i jus...