It depends on what kind of therapy you're in. You need an honest but supportive therapist - someone who can help you deal with the real issues at hand rather then neatly skirt round them for fear of a setback in your progress.

Jealousy and other such feelings are usually caused by lack of self esteem - what is your therapist doing to help you feel more self assured and independent? The only advice anyone can give you here is to continue building a life outside of your partner; take up certain activities, join social groups, perhaps go back to studying for something be it a new career or to help you progress in your current one. If you have enough to feel good about outside of your relationship, it's easier to feel more comfortable within it.