Because she didn't have an issue contacting me prior to that, a couple days ago. And whether you want to move on, don't want to be with somebody, it's still polite to say thank you when you receive a gift. I didn't mean she was treating me like I was worthless by not texting me in general.
And for the above post, I feel like if I personally deliver her flowers that looks too like "I'm trying to win you over," rather than me just sending them as a kind gesture. I have no hope in flowers rekindling what we had.