I need some quick help.

Background : broke up with ex 3 months ago. This sent me through a whirl for a few weeks. Looked for resources online which led me to start doing something about myself. This eventually led me to theredpill. For the past 4 months I have been learning game, lifting, embracing meditation, and eating right. I am feeling really good about myself these days.

Today my ex sent me a message on my bday. This was wishing me a good birthday and saying “I hope all is well.” I am assuming this is a shit test, but I need help on how to approach it. I was thinking either no response or a “thanks.” Whats do you guys think? I’d like to make her a plate at some point, but not until I have set up enough plates. I am not completely over her, but I don’t want her to smell that.