Thank you for confirming.
You can file for divorce in the UK if one of you is habitually resident in the UK.
However, for court orders concerning your child you would have to look to your local court as the UK will not have jurisdiction if your child is not resident in the UK.
For your divorce you can file online rather than sending a paper copy.
The link to the divorce petition application is here:
The fee to apply is £550.
You can tick on the form that you wish for him to cover these costs.
The link here sets out the process and gives an idea of timescales:
You should not lose your son if you apply for divorce - you are his main carer and there is no reason that this would change.
If you are not interested in making a financial claim, then you can ask for a clean break order to sever ties between you.
This article here sets out what are considered joint assets here, and hopefully this will give you information and help you make a decision as to whether you pursue this angle: https://www.co-oplegalservices.co.uk/media-centre/articles-may-aug-2017/matrimonial-and-non-matrimonial-assets/
Hopefully, I have answered your query in a way that is simple and easy to understand. If you have specific questions arising from my response, let me know and I’ll happily clarify for you.
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