You are the person that is most qualified to judge this situation. Your instincts sound spot on.

You blew the chance you had and we can't tell you if there are second chances.

How can she be under the illusion you will sweep her off her feet if the most romantic thing you are willing to do is help her walk her dog?

Maybe there are women out there who can overrule their instincts and that do go for beta males. But most don't.

Why are you texting? You aren't a 17 year old girl. Don't have a text relationship if you want a romantic relationship. Even this girls and women who do tons of texting, I doubt they dream about how wonderful it is to text with their prince charming.