He's not really patient with her at all

I've recently noticed a pattern whenever my daughter throws big tantrums. She throws little ones for e.g if we won't let her have something but they never last long. However there are times she'll throw really big ones and looks uncomfortable which happened quite a few times today. Back story :our daughter has a bowel problem and still not healed yet. Her dad seems to think that after a month or two she'd be perfectly fine. I have to spell it out to go, hello she's still healing - it will take up to a year. For some reason he doesn't get it. Earlier today she threw a tantrum at baby club and it was unusual. During her nap she woke up uncomfortable and threw another tantrum, I tried to calm her down and her dad woke up annoyed 🙄. This evening she threw another one and it was longer than usual, her dad was raising his voice at her to calm down. I said I thought something was up with her today since she's been like this since this morning. He was adamant it was nothing to do with earlier and it's because she wanted to play. I said her tantrums aren't like that over something so trivial even so I don't understand why he wouldn't let her place. He kept telling her it's cool down time and it's not even near her bed time. Anyway he just rolled his eyes at me. The last she threw big tantrums, I suspected something was up and I was correct. I just want him to be patient and understanding but it's like ignorance is bliss in his world. What do I do?

Thank you all. I appreciate all the advice.