You'll feel a great sense of security in this relationship, and unless other strong factors indicate otherwise, your partner will be a source of support and constancy in your life. But while a steady relationship may be just what you're looking for, it won't always be a fun experience for you. This person, after all, was your caretaker or teacher in a past life, and vestiges of that old connection will still make themselves felt between you.
Whenever you try to be yourself and assert your independence in some direction that your lover doesn't espouse, they'll react with criticism and skepticism. They'll still feel that past-life sense of responsibility for you and your personal growth, but it will come across to you now as a restrictive influence. If you're not careful, you could even let their influence chip away at your self-esteem, diminishing your strong sense of self. Don't let that happen; instead, assert yourself as the person that you are and insist that your partner let you explore your own avenues. Remind them that yes, you will make mistakes, but they're yours to make, and you'll learn from them. It's time to break that heavy past-life bond of responsibility and limits, and establish something more freeing for you both.