hello lady's i have a question?

Awdriolivo

so my bf has a son from a previous relationship i met my step son when he was 3. when i met my bf mother she kept telling him to call me mommy. i felt really uncomfortable at first but after acouple of months i just let it go.. he started calling me mommy and i started to see the love he started developing for me. i just love him like he is my own... he is now 5 years old me and my bf mother are not in good terms now she is telling him im not his mother... it hurt me because now she is taking something so important away from me.. not only that she is really messing up his head and that hurts even more.. his biologic mother is not in the picture she left him when he was born.. i dont know what to do help..