I urgently need someone's help please don't ignore

So me and my ex boyfriend have broken for around 6 months but recently we have starting talking and basically began to talk again ( however we always used to talk throughout the break up) and we met up 3 days ago and it was like we were in a relationship again --however he hadn't talked to me for 3 days after and I finally asked what's wrong,he told me that it doesn't feel the same he can't chat to me anymore and he just wants to end it now.Ovbiously I was upset because I love him more than anything however he always just leaves me it's happened about 5 times before and I always go back to him.What do I do now should I delete him off my social media, Iknow I should but I really don't want to because he's my rock and I'd feel like I could never contact him if I do and I'd feel like I have actually lost him forever and it breaks my heart I need someone to tell me something that I will actually be able to do please help because I'm hurting so bad