My boyfriend has made references to me being more established career-wise and financially than him. It is now making me feel uncomfortable. What should I do?

It sounds like he may be feeling insecure about your situation. It could be good to approach and talk to him about the issue in a calm and accepting manner. Tell him that it's making you uncomfortable, but also be willing to hear him out. It can be hard to approach subjects like this calmly, but if you work together this could be a great opportunity to improve communication between you two. The main thing to avoid is becoming angry or defensive, so try to approach the issue at a good time, as opposed to when one of you is frustrated, angry, or tired. It definitely sounds like a difficult situation, but one that has a good chance of being resolved. Hope that helps, and good luck.