Family disapproval is difficult because two loyalties collide.
The people who raised you may believe they are protecting you.
The person you chose may feel they are being judged by people who do not know them.
Sometimes the family is wrong.
Sometimes they see something you are avoiding.
Your job is not to obey either side automatically.
It is to evaluate the concern.
Ask what the objection actually is
" We do not like them" is too vague.
Ask for behaviour.