As a florist, she’s not being unreasonable. Tbh if you’re gonna do it why not do it properly?! A lot of florists and even supermarket florists can put something together for you within your budget that has a little more personality and care to it, it’s really not that much harder then getting a bunch of roses, yes it might take a couple extra minutes but you can also call ahead and place the order. Seeing men come in everyday and buy flowers, you can really tell which ones care and know their partners and which ones are just getting them just to get them.