I don’t think man/woman boundary is an issue. I think general boundary is an issue. I just can’t grasp why would you bring flowers for decorating someone’s business. She never said “yes please”, she just smiled. It doesn’t seem appropriate. I don’t run business but I put flowers on my patio. I’d not want people to bring me flowers for my patio because I go for particular color scheme. I don’t think it’s a big deal but she is now kind of forced to hang flowers she might not even like.