It is utterly terrifying to me that you dont see how serious this is! He has messed up your boundaries so so badly that your vision on this is totally skewed.
As Cora says OP. None of us are being stern with you for the sake of it here.
Dozens of us will have experienced similar, a few of us barely escaping with our lives.
He is no longer living in the marital home, but you - through fear, through not having the benefit of hindsight as do so many of us here, through misplaced kindness, through wish fulfillment that he will be a 'good dad' - are still 100% under his thumb.
When he moved out, did you do the Freedom Programme?
If not, please will you do it now? - you need RL support to help you see that his behaviour is totally unacceptable, & that there are tried & tested tactics available to you, to finally free yourself psychologically of his terrible influence on your critical thinking skills.
freedomprogramme.co.uk/online.php
Also - outofthefog.website/toolbox-1/2015/11/17/fog-fear-obligation-guilt
I know this is hard to take in. I'm only talking tough to you because I can see it from the other end of the tunnel OP, & you, as yet, cannot - because you are still trapped in the FOG (fear obligation guilt, see link above) of the abuse cycle, & you will not be free of it until you have taken significant steps to educate & release yourself from your ex's thrall.
Start those steps today.
- back to your solicitor, tell her you are ready to start listening, tell her you want the full force of the law's protection starting NOW
- Police. You know what to do. Get it logged, keep logging ALL communications with ex. No more talking to him. Use the technique by PP upthread - hold your hand up & walk away while calmly stating "your behaviour is illegal & unacceptable, & you are not to contact me except for making arrangements about the kids".
Practice this one OP, you need it ready to trot out so your poor wounded mind does not seize up. Yes - I know how it feels. Say it now, in the mirror. Memorise it.
- sign up to the Freedom Programme. You can do it online, but if your circumstances allow you to do it in person, so much the better - imagine the support & understanding of all those RL people having your back! How good is that going to feel?
- read Lundy Bancroft. I mean - make him your bible, your go-to resource, because every word he writes is true.
& for crying out loud, keep posting here while you sort that lot out. It hurts, it's scary, but this bloody camera incident could be the start of you finally, finally, ousting this sick weirdo from your day to day life & your mind.
if it all gets too much, PM me.
I'll check in for messages for a few days .... just in case you feel you want extra support while you push yourself out of the comfort zone to finally get your nasty pest dealt with in the ONLY manner which has a hope of stopping him. Legal. Police. Today. Please, OP.