Hi Clare and thank you for your response.
Our house is not valued but I would estimate at £1 million with approx £170k outstanding on the mortgage. He has private pension schemes, death in benefits and approx £75k in savings.
He earns £120k plus bonuses of c£40-50k pa whilst I earn £18k pa with no bonus.
We have been married nearly 19 years, living together for 21 years with 2 children at GCSE and A level age.
I know very little about the third party but know she is divorced and had sufficient income to pay for additional in-the-home help to cover child care during out of school hours prior to the divorce.
I believe I have provided a great level of support and have undertaken enough household management for him to be able to concentrate on his career. I therefore wish to ensure my own financial future should we part as a standard of living has been achieved due to his career success, which has been achievable because I have managed all aspect of our private lives.
I am at present trying to repair the damage which has been done, but do not feel those efforts are currently reciprocated.
Thank you. I look forward to your response. Any further questions, please ask.