I don’t think your ideas are creepy at all — but that’s me. Everyone is different. Why not accept her invitation and bring her flowers on the date. If it goes well, then ask her for her number at that point because if she’s willing to ask you out and take you on a date, she should be willing to give you her phone number! And when she gives you her number, you get the ball rolling by taking the lead at that point. Hope that helps! 🙂