Any chance of getting back together?

[Sophia2012]

So my now ex and I were together 2 years and 9 months we live together have a very strong relationship physically and emotionally. I have a 3 year old daughter from a previous relationship but he is more her father then her actul father is. So a few months ago I started to having feelings of doubt about his love for me because basically everytime I brought up whetting married he would say we aren't ready. Friends would ask is and he would say we're talking about it. I get confused like he was giving me mixed signals. In order to feel the love back from him I needed more affection attention from him that we have never been good. I recognize this but felt unworthy by him because of his back and forth I felt like I wasn't good enough for him to marry me. We're both air Aquarians if that even matters but our personalities are so much alike and I've always get like he is the one. He is my best friend. I don't few like we grew apart. one night a guy started flirting with me and I flirted back not with any intentions of pursing anything just for a little fun it made me feel better about myself it was attention I was craving but from the wrong person. So my bf sees texts and calls it quits right then and here kicked me and my daughter out of the house and all. Now he's doing NC I've been trying but finding t very hard to get over I did not want our relationship to end this way. I feel we can work it out and he does not. He says I cheated on him. He says we can maybe talk at another time but the outcome will stay the same and that I need to try and move on. I physically cannot. I feel so guilty and sick to mys homage to have lost my best friend