He must hate me....

j.g🥀 • 25, mother of 1 👧🏽💕
So I've been feeling very sad for the past few days, I haven't been feeling any type of happiness at all. The reason is really because I'm stressed out about a lot. My SO decided to ask me this morning what was wrong with me and I told him "it doesn't matter" he insisted I tell him and he responded with I know why you're acting this way I just want you to tell me. He said it with compassion as if he actually cared, well when I finally told him he started getting loud and telling me how I only think about myself and one thing led to another and he left to work and text me afterwards saying he didn't want to be with me and he was gonna pack his things up and go. After being with him for 6 years I'd think it wouldn't be that easy for him to say this. I know he's not serious he's gonna come back but he's not gonna talk to me at all. This is all coming from the guy that has been talking about getting married with me and having another baby soon. Idk what to do I had to call in to work because I'm devastated my head already hurts and my whole day has been ruined. 
Life sucks for me right now.