How to gracefully move on?

If you aren’t new here, I’m the girl whose boyfriend broke I’m with her for joking about wanting to be a bottle girl then she lashed out on him and mentioned his baby who passed away. I profusely apologized. He said just give him space. Then throughout the day I realized that my mean thing isn’t what caused the breakup… he had already broken up 2 days before the mean comment over stupidly joking about wanting to be a bottle girl. I was holding onto hope that when he got back from his weekend trip to a friends wedding, we would make up. But then my friend told me he’s going on a dating app. When I confronted him about it he said “Yupp made it today.” I told him he’s a terrible person and that I wasn’t going to let him get me out of character again and that I hope he finds what he’s looking for. He responded with a simple “you too”. I don’t believe anything I’ve done or that’s transpired warrants him being so cold to me he just told me he loved me for the first time one week ago

so clearly now there is no hope of reconciliation but I would like some advice on how to move on gracefully. I blocked him on Instagram because even though he does not follow me, he continues to watch my story even after confronting him about the dating app. Is there a trick to moving on? We only dated two months so I don’t know why I feel sick to my stomach about this. Help 😢.

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Edit: my friend told me she saw him on a dating app and his photos on it were new photos he’d taken since we’ve been together.
How to gracefully move on?
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