Boyfriend insulted a meal my mom made for him?

My boyfriend came to visit my family home. My mom made us burgers. I really liked them. Later, I asked my boyfriend if he liked them. He told me they were nice but would make me ones that were a lot nicer. I felt quite insulted , and bad for my mom who had made the effort. He also told me that, at the time he went to our bathroom after eating his burger, and had to throw up because it didn’t agree with him. I had no problems with mine. I’m really disappointed that he said this, am I overreacting or was it disrespectful?
Boyfriend insulted a meal my mom made for him?
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