sure, this is a place where you can be honest - it's difficult to find someone in RL who will be able to sit and appreciate the many different aspects of a break-up. Confusion, hurt, anger, sadness, self-doubt, self-hate, guilt.... the list goes on. On here, you should be able to talk about all aspects of it and not just the 'I will survive' bits as you mentioned above. I'm glad you are doing so.
People like stories, though, and they want your story to be 'And then she broke up with him and he got his comeuppance for his actions and she and her son lived happily and productively ever after'. Therefore, they get slightly twitched at any indication of an alternative outcome. It's not fair on you and I'm not excusing it, but it does happen.
When I broke up with my clinging ex (as in, it took a few months for him to get the message and fuck off properly - thank goodness we were in different cities), there was one poem that really resonated with me:
Coat
Sometimes I have wanted
to throw you off
like a heavy coat.
Sometimes I have said
you would not let me
breathe or move.
But now that I am free
to choose light clothes
or none at all
I feel the cold
and all the time I think
how warm it used to be.
Vicki Feaver
I got past it, eventually. You can too.