Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first
Where were your parents grand parents and great grand parents all born?
I am sorry but you are not entitled to a Right of Abode as the link is too far back.
Equally I am afraid that since none of your grandparents were born in the Uk you are not entitled to an Ancestry Visa either.
I am sorry to give such bad news
Please ask if you need further details
Does your partner have an Income of more than £18,600?
How much is that in Sterling?
How long have you and your partner been together?
May I ask how old you both are
Are you both willing to consider marriage?
Would you consider coming for a longer visit first?
YOU can apply to come here on a Fiancee Visa which can then be changed to a Spouse Visa after the wedding.
You can read more here
Whilst he does not meet the income requirement your capital will ensure that the financial requirement can be met
You are most welcome I hope all goes well
You can enter for six months - and indeed you can marry whilst you here - but you have to return home to apply for the spouse visa
You will be able to pay privately for the health care you need