Hi Daphne, I agree with what has been said below. The only comment I will make (adding to a portion of Terri's response) is:
"Your rights to the house and or equity is determined between you and your partner." AND YOUR ACTIONS.
For example, I believe some of the acts listed above, and such things as making improvements to the home, MAY create an "ownership" claim/right.
DO have a RE Lawyer provide you with your legal options based on all the details that have transpired!