My boyfriend who lives with me cheated

My boyfriend of 3 months quit his lease after a month of us being together I let him move in until he found a house but he was lazy on it. we spent most days and every night together. I dropped him off an hour away so he could have a business meeting in Orange County he kissed me and said "I can't wait to come back home tonight and cuddle you" he ended up staying at his best friends house they got in a fight and instead of calling me his girlfriend to get him he called his ex girlfriend who lives in Orange County And didn't tell me I had to see her post pictures of them on instagram when i called him he didn't answer and he started texting me saying "I want to come home, I miss you, I gave you my heart but I feel like I did the most and it wasn't enough" I hadn't told him I knew he wasn't at his friends house so I said let me come get you now and he made excuses and then never called or texted me again I texted him that it's over and I knew he was with his ex and to let me know when he comes and gets his stuff.. I'm pretty sure he blocked me and never got the text. It's been 2 days and everything he owns is in my house. What do I do?

she would open my instagram story everyday and see us together and then start calling him on blocked numbers 50+ times he would answer maybe once every 2 weeks bc he couldn't answer business calls with her spamming his phone on blocked numbers he would answer screaming saying "stop calling me you dumb girl there's nothing you need to say to me I will destroy you" he told me she's was insane and when she saw we were together she couldn't handle it he's even gotten his friends to answer the phone when she calls and his friends said "don't you understand he dosent like you, move on" how could he go back to her when he lived with me and everything was great between us no arguments I feel devastated I can't stop crying