Advice needed . My 18 year old autistic child has left home to be with a person who says they love each other. This person same age doesn’t wash , work or want to work , has no manners, my child does not have old friends anymore as this person doesn’t get on with them . We bought a car for my child and this person is chauffeur driven here there and everywhere . No thank you or recompense . Never a thank you or a please for anything done. Rude to family members . My child was looking at a college course now not , my child pays for all the days out etc . I am worried that my child is throwing their life away for this person who we can see is bringing them down . Should I take the car back ? Maybe it means that they won’t be as useful to the other person ? My child hardly talk to us now . At a loss what to do.