@meesh0
Sorry you are experiencing this and can understand first hand what it's like to experince estrangement from family member,
I think 🤔 you seriously need to get support and advice from charties specifically help women and girls in your predicament kind of situation you are in,
explore online Internet various different charties and organisations so you don't feel alone so much and isolated,
also look for as much support in various ways as possible from as many different sources online and elsewhere,
There is help and support out there but you need to a bit of research,
Cause obviously you have found yourself in is all too common
does your gut feelings your intuition tell you that you could be in possible danger of some sort ?
You do know the UK law is very much on your side in your Kind of situation too
enforced arranged marriage is definitely illegal here in the UK
only get engaged if you want too not to appease potential family blood related emotionally blackmail coercive oppressors
Also it's being emotional manipulative and coercive to use your father's health disorder as a emotional leverage tobring you to heel to their wishes of what they feel is right for you,
What is your family's issue with your partner is it cause you want to live together before intending yo get marriage and they percieve this as being sinful and against their culture's societal and families values or is it cause he is white so they are prejudiced about this?
Or
Is it a mixture of both these factors ?
Are they usaully emotionally manipulative and coercive or and Narastistic or other personalities disorders issues they display sometimes or often?
what is the crux of their issues with your partner then?
Are they usaully reasonable people ?
as i am wondering if it's possible to meet them outside, your parents in a neutral place such as cafe or restaurant or a library or community hub ect?
whereas their as lots of people potential witness around so less likely to misbehaving on their part but on the other hand if they are emotionally abusive you have witness there too, eating their food,