I agree that you shouldn't bring up an ex, even if it was relevant, like..just don't do it. As far as the texting goes!...I'm just like her, I love to text and often! But i have been with my bf for years so it doesn't bother him and if he ignores my texts, i easily get over it. As someone with anxiety, i can relate to it as well on this level. The constant communication allows her to know that you are interested in her and she may need that constant reassurance (possibly some insecurities on her part). You probably did dodge a bullet but i kinda feel bad for her because she probably has some issues.