Relationship Advice ( I NEED RESPONSES)

Yndia
I Met This Guy Off Facebook He Cane Into My World & When We First Met We Did Everything Boyfriend & Girlfriend Do But We Never Established A Relationship I Cook For Him Clean I Work & Have My Own Place & Car! He Is 19 I'm 20. He Tells Me That He's Very Distant From His Mom & Rest Of The Family & He's Had A Hard Life. He Tells Me All His Secrets & As Times Goes On He Goes Through My Phone. We Have Sex & While I'm Sleep He Looks At Comvis Between Me & Other Guys. All He's Sees Is Convo & He's Always Getting Mad But Never Wants To Talk About The Situation. One Time He Said That All He Wants Is Loyalty From Me But He Keeps Going Through My Phone Seeing The Same Thing. Everytime We Argue Its Because Of My Phone. I'm Not Having Sex Or Seeing Anyone Its Just Light Convo But He's Yet To Show Me Any Affection Or Tell Me How He Feels. I Do Whatever This Man Ask Of Me Money My Car Anything! One Day He Just Simply Says He's Done With Me! Idk What To Think! I'm Sick To My Stach I Can't Eat Sleep I Can't Do Anything! What Should I Do. I Tried Talking To Him Blocks Me & Ignores Me Doesn't Text Back I'm Just So Hurt. My Plan Is To Go To His House & Knock On The Door! Should I? What Do You All Think!