Mother in law/others holding baby

Megan
We have tried to make a point to visit both sides of the family weekly to promote bonding with baby. we visit my husbands parents on Saturdays and my side gets together Sunday's. The past few times I've seen my mother in law she will hold my newborn, who is exclusively breastfed, and will "distract" or talk him down if he acts hungry. He is only 8 weeks old now but this started when he was about 4 weeks. I tell everyone if he seems hungry I will feed him, I feed "on demand" as he is still so young. He will start to fuss and seem hungry and she will start saying " no mama, your not hungry, you are not going to mama, you don't need her/to eat" and he will begin to scream with a sad quivering lip and she will still repeats this. I'm all for letting others soothe him and him learning others ways of soothing but, he's freaking newborn and hungry! I don't feel like he should "tough it out" or be distracted. I had to literally finally be like "ok, give him to me" and grab him from her last time. It's making me not even want to go over there bc I feel like she will make me watch my baby cry while she tells him " you don't need her". Am I being irrational? I really feel mama bear instincts when he starts really crying and someone is blocking him from being fed. Ugh. Do I need to get tough on MIL or lighten up?