Advice

[Donutcake]

Going through a messy separation.It’s starting to get real bad. Please tell me if throwing water over my head out of a window, throwing half a sandwich at me and smashing a plate against the wall near to where I’m standing is acceptable as he hasn’t actually hurt me. All in front of children.
I think I’m being manipulated to think this is normal

Oh OP I hope you know none of that is acceptable behaviour. Is there anywhere you and the kids can go to get away from this?

No it’s not normal

report him to the police for abuse and apply for occupation order and nom molestation

hes trying to control and manipulate / so take charge and remove that

def not normal behaviour

go & speak to the police / similar services without him knowing & move out to temporary accommodation either if you know 100% he won't be present during you & kids moving out or with police escort.

by staying you put yourself & kiddos at risk

It's not normal and presumably he does these things in a fit of anger? Are you scared of him?