Do I have a chance to win him back?

Anonymous
My now ex & I were together for 6.5 years & we have one child together. It has been rocky a lot but we always worked things out, always put effort in, & worked on our toxic/bad behaviors for one another.
In the last year there has been 2 incidents. Number 1, we broke up for about 2 weeks. During that time I posted a more risky photo of my self on SM as a confidence boost. I deleted the picture after a few hours. We ended up getting back together & I didn’t think anything of it. Fast forward months later, we’re broken up again for about 2 weeks. I noticed he added his ex’s on FB so I created a bumble account. Nothing came from this, I didn’t like, message, or respond to anything & deleted it after 2 days.
His coworker saw me on bumble & told him about it. I explained to him, nothing came from it and I’m sorry I did it. We worked it out and went on with our relationship.
Present: About 1.5 weeks ago we were at a party and a friend (man) to us told my ex about the photo I posted (incident 1). I told now ex, we were broken up when that photo was posted & the photo was deleted.
That led to our break up right now. He says he’s done 100% nothing will fix this, I’ve ruined the relationship & he can never ever trust me again. Up until he found out about the picture from incident 1 which was about 8 months ago things have been the best they ever had.
How do I win him back? I know we are ‘soulmates’ as cheesy as that is. I know he is my forever & I’ve poured my heart & soul out to him & he doesn’t care. I’ve tried having just a normal conversation with him since & he told me to stop so I don’t get the idea we can work this out. I love him & his family. I have no family of my own & am literally on my own except for my child. I just don’t know what to do. I really feel like I’ve lost him for good. But I want to win him back no matter what.
Do I have a chance to win him back?
3 Opinion