@canab 123,
Dear Sister,
I strongly feel bad for your situation. First of all, you could have also briefly explained us what led to your first divorce after your child. The reason is this may be leading to a strong baseline for your current situation (in an indirect way).
Coming to your current situation, it is very bad that you are facing the abuse. The incident where you also hit him back, shows you are no weak character and strong enough to retaliate (signs of woman who are very strong to take things to any extent). I want to use a word 'caution' here, do not take things to an extent, that the cord breaks finally.
Yes, you are absolutely correct, one more divorce and you are off the path to recovery. And even you have slightest thoughts of going for your 2nd divorce, I would suggest 'be prepared to live rest-of-life alone', than tyin a knot again.
Any one with a common sense will point finger to you, with out a second thought if second divorce occurs...be careful. Instead, stay away from your husband for sometime calmly and let the smoke go away, the doors of reconciliation shall open up automatically.
Do not make things more worse.