Splitting up after 4 years

Hello
I cohabited with my partner for 4 years - he had cohabited with me for about 6 months prior to that. When I met my partner he was in serious financial difficulties. We moved into a house which had a bathroom but no kitchen and completely refurb the house. My partner was a builder previously but had just stopped working... I sold my company in 2014 and then worked with him full time renovating the house we lived in building a garage - i carried all the bricks and he also has a small lodge park which also needed a lot of work doing to it to bring it up to standard. We agreed that I would work alongside him and we would live out of the money from the lodge park. I helped paint and completely re furnish the lodges, I also gave him the confidence to leave Hoseasons and take booking with a new company Blue chip holidays - Hoseasons were taking 23% commission which didn't make the lodge park very profitable. Bluechip took 15-18% commission depending on sales and I started the social media and booking for the lodge park - in the first 14 months I took £130k in sales and this year I was well on target to take more. The house in Knaresborough sold and we moved into another building site to renovate which we had almost finished inside but the outside still needed a lot of work - I gave my partner a granite worktop for the kitchen and sink etc and did most of the painting in the house and generally laboured - I also cleaned at the lodge park when required aswell as doing sales and accounts.... as finances improved with lettings etc my partner started paying me £250 a month for marketing the lodge park and also occasionally her would pay me a little more for help with cleaning and laundry or if he was away and I met and showed guests into lodges which I did most weeks. We lived entirely out of the lodge park taking buying clothes paying for the mortgage on the house which is in my partners sole name and clothes, food, holidays etc etc
Unfortunately I contracted breast cancer and was diagnosed in April 2017 - I have been extremely ill with surgery chemo and radiotherapy and now hormone treatment - Due to my partner not being able to cope with th terrible side effects I suffered - anaphylactic shock with both perception and the chemo and almost dying, my partner and I split up in July this year with me having to move back in with my parents age 56 yrs - my ex partner those financial situation since I met him has completely turned around. Since 2014 Aug I have worked for the sole benefit of my ex partner and my question is - do I have any legitimate financial claim against him?? I had full access to all bank accounts and the company credit card.

You say partner as opposed to husband.

As a basic rule of thumb it is a business partnership and each can take out what they put in. That said it could be a case of you both losing everything if the business had failed.

It is very difficult with live in partnerships as each has a role to play..he does this..she does that situation. This is complicated by the fact that you ran your 'life' as a business. ie the houses were mere investments you both benefitted from. I gather that you did not have a formal partnership agreement . Why would you as it was all based on trust.

From what you are saying you both created a 'business' with equal partners. When you split that business was worth £££££ and had ££££ in the bank and ££££ in assets.

I would suggest that as equal partners you get 50/50 but this could change by many factors ie the money you put in and the fact that he had to run it after you moved out.

Some legal advice would not go amiss here to see where you stand.