OP, what he thinks of you is neither here nor there.
You should give some thought as to why you feel so defined by your abusive husbands self serving definition of you?
Bottom line, which is harsh, I think it will be really sad if you put him ahead of your childrens needs.
Money for the morgage and repairs are for your children ultimately.
That you would place more importance on this awful mans opinion of you than your childrens housing needs is so wrong.
Because by not going after his pension, that is exactly what you are doing.
By not following your solicitors advice and going after his pension, is allowing his lies on the matter to be more important than what your children need.
You will realise this in the near future and you will be one of those women who will bitterly regret not doing the right thing by her children.
Because it is 100% the right thing to put your childrens housing needs first.
I would be proud to be called a "grabby bitch" for securing my childrens home by not allowing a liar like your Ex screw me with his pension lies.
Listen to your solicitor and decide do you want to add to the years of regret you wasted with this ugly abusive loser, who will happily put himself ahead of his children by ripping you all off.
Or, will you be brave and get every penny you and your children need to secure their home?
His opinion of you is none of your business and should not be your concern.
Listen to the solicitor who is costing you money.