All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
You should have first taken the right path in choosing a wife by investigating about the girl and asking about her the trustworthy people who know her. If they praise her well, especially in religion and morality, then approach her family to get engaged to her, so that they would give her their opinion on what she wants to do regarding leaving work and accommodation. On the other hand, you should have also advised her to wait if you had known that she wanted to do this, especially since you were reluctant to marry her.
Therefore, you were wrong in dealings with this girl and your promise to marry her while you are still hesitant about it, and you let her act on that promise until she fell into the problems that you mentioned. So, your behavior in its entirety is a kind of deception to her. Hence, you have first to repent to Allah a sincere repentance, and if this girl is righteous, and it was made easy to marry her, then that is more appropriate to do, otherwise cut off your relationship with her.
As for compensating her with some money, it does not appear to us in what you mentioned that you are obliged to do so, as she was the one who rushed to decide to leave work and housing. She should have been prudent and consulted people until it becomes clear to her whether you were going to marry her or not.
Allah knows best.