What are the repercussions of rescuing someone in a relationship?

Have you ever “rescued” someone by getting into a relationship with them? Supported someone through a breakup maybe too close to the end?

What were the downfalls, the negatives that arose from doing so? Did you find that your love and concern replaced their ability to find their own identity?

I’ve read many Fluther Q&A on the topic of moving too quickly into a new relationship after one has ended. I am curious to know what issues you’ve experienced as a result of doing so.

I am seeking mature answers from conscious jellies – specifically those who have worked on being aware of patterns in relationships.