She sounds exactly like my ex a few years back that i bought my first house with.
as soon as we moved in the change almost happened over night - contact with family and friends was frowned upon, yet she wanted to be out with her friends every weekend - and was at her parents almost everyday on the way home from work.
my interest in cars which id had for a long long time before i met her was now called 'childish' even tho she shared the interest up until movng in.
to say our relationship didnt last a great deal of time is putting it politley - she did my head in (litterally)
i normally think people putting posts up about there personal life are daft - but in all honesty mate - if shes like this so early on she will only get worse - run and hide