My boyfriend prioritize his mom over me?

We are both almost 20 and have been dating for 3 years. He would always leave our hangouts early because he always has to help is mom 24/7. Last valentine’s Day I put in so much effort and money into making the basement of my house look pretty and cooked us food. Just for him to get a call from his mom and him needing to leave even tho he was there for 1 hour. This year his mom was like “you need to take your grandma to her appointment, that’s her valentines gift to you” and she looked at me while she said it. He can never just say no, I have plans with my girlfriend.
My boyfriend prioritize his mom over me?
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