How you are feeling is completely normal.
Your life has been absolutely turned upside down and now your having to co parent in a situation you never imagined.
Its hard not to be insecure and jealous. But you need to flip it totally on its head and focus on every single thing that is in your control now. One of the worst parts of co parenting is coming to terms with the fact your children will have a childhood that to an extent you cant influence fully.
That includes accepting that you will need shore up your emotional strength to be their balance, security and calm. With an outlet to express your frustration. Because you will have plenty.
Moving on is a choice though. Holding on to anger, betrayal, allowing your self confidence and self esteem to stay low is now all yours to change. If you allow it to fester you are literally handing over your life, your experiences, your ability to make plans, to find joy and happiness to be dictated by two people who arent wasting a minute of their life worrying about you.
Dont let that happen.
My dd father, left after having an affair moved in with her and her child. I thought it would kill me and for along time it did.
Until the day I woke up and said fck this shit. Im sick of being miserable because im thinking about them.
I have a great life, im married have more kids, my career is great, I have great friends.
But it all started from saying fck this. Every single time I started to obsess, think about it I would say fck this shit and get up and move.
Its radical acceptance. Acknowledging its happen, its shit and you cant change it. So what can you change? Dont miss out precious moments of your kids childhood wrapped up in sadness and bitterness.
And they may last who knows, but they are absolutely shocking shit parents putting kids together so quickly in these circumstances. He s a piss poor father whos desires and wants come before his kids wellbeing. Clearly they werent ready.
But there isnt any point talking to him about it. He wont care and it will be your fault.
Spend time listening to podcasts on healthy co parenting.
Read books that interest you. Find a song that up lifts you and play it a million times a week to make you feel good.
Cry when you feel like it then shake it off.
Spend your time with your kids doing things you enjoy. Make new routines at home. Small things that all of you can use as anchors. Let them express their feelings and if you think they need it get them some support.
It wont always feel like this if you make a choice for it not to.
Its horrible and soul destroying now but there can be real resilience found in the hardest moments of your life.