I think you should nix the card and just ask her out for coffee.
The theme of the card (thank you..for what?) is confusing. If your intention is to give her something in the spirit of the season, a simple non-religious seasonal card will accomplish that. You can find those at Hallmark stores.
If your intention is to get to know her, then be direct and ask her out. I hate when men beat around the bush. She's been giving you the green light so proceed.
No offense Bruh, but you sound a little wound up....you know what i mean. A little female companionship will take the edge off.
And yes, I've rationalized situations to take the sting out of miserable circumstances that I was dealing with. It's the first step in thinking for yourself and recognizing that standards/rules dictated by others may not be the best for us.