Before you decide think hard about your ultimate decision ….I lived in Europe with my second husband until he died last year . The laws as you know in most European countries are different to those in the UK as regards divorce and entitlement ...that is if you decide to divorce him ...and take into account he may not agree. If you can afford it go and see a Notaire (although you would need either an Avocat or an Abagado ..depends where you live) This would be long and very costly. If you chose to simply abandon your spouse and if he were to become ill, in France you have a legal obligation to 'provide security, safety and nourishment; to a spouse (yes, really !) as I thought about leaving during the 21 years we lived in the EU ….and then there is the law of Succession as regards any property you own and rights of the children if you have any. Look carefully into all of these things. If you ever worked in the UK you should have a right to top up your contributory payments to the DWP so you do at least get a full UK pension. I did this when I left the UK. Have you any children in the UK ? maybe they could help ? If not, trawl the government web sites on Benefit Entitlement, and Age concern has items on its website as regards the rights of returning British citizens (a lot, I suspect, will be doing this when the full impact of Brexit is known, so get in now !) There are 'rent a room' schemes where you share with an ederly (sorry, but anyone over 40 in the UK is elderly !) home owner ...details on web ...looked at it myself once ..something like 'Share a room; ….have to take a risk though ! or a mobile home ...I found several cheap ones to rent when I was looking …..and of course you could try Citizens Advice or any other charity BUT do a LOT of background research before making a snap decision ! Personally I stayed, although it was hard ...just made my own life and we jogged along together ….looked after him until he died as he had a degenerative neurological disease, which was hard, but I am glad I did. Good luck 