She's definitely not an AH for not being overly happy or emotional receiving flowers or gifts. As long she shows genuine happiness and gratefulness for receiving gifts, that should be enough ofc. Her husband seems to be reacting so emotional about it because this isn't something that would normally happen to him. He probably didn't ever expect it, or think of himself as being "flower worthy" because he's a man. Not blaming her or anyone! It's a very stereotypical practice that men are the ones that should buy the flowers and women are supposed to get the flowers. But we modern here. We can all gift our partners flowers no matter our sex or level of masculinity/femininity. I grew up with a dad who loves flowers, so i grew up thinking that was normal. My dad is also the cook of the family so i also thought cooking was the "man's job" in a home when i was young. The amount of surprises i've been through growing up hearing how everyone else's dads don't cook, help out with chores or like flowers. Who don't like flowers?! Allergic people get's a pass 😂 We should all be gifting our partners and loved ones flowers from time to time. Flowers are awesome! And most of all, the thought and gesture is what people love the most about flower gifts.
I wouldn't say AH, but she's been letting him do everything in the romance department. I think she just had a big wake up call and will make more of an effort in the future.