Let’s be blunt here, I know you’re in the middle of a custody battle, which must be a nightmare, but why oh why have you not shown your son how important he is to you by shutting down your tour to be in London with him?
Surely falling apart on the stage and maintaining a dialouge on Twitter can’t be the way to go, nor be doing you a whole lot of good? And why you need to stand on a stage to call out to your son is beyond me. Pick up the phone, send him an email, but keep it between the two of you.
Parents sacrifice a lot for their children, children shouldn’t sacrifice for them. And if that means your bank balance is compromised, I think you’ll cope. Baked beans on toast will not be the main meal of the day for you.
Pull yourself towards yourself and do the right thing.