<human>: Can you condense the text into three sentences or less?

We were together 1.5yrs, and I was crazy in love with her. She broke up with me a year ago after she met another guy, and I was stupid enough to fall for the 'but let's still be friends' game for agonizing several months. Kept me on the backburner in case it didn't work out with new guy. 

We've been no contact now for a year. I've had her blocked on my phone, until I got a new phone last week. I just got a text from her basically saying "I think about you all the time... Hope you're doing well, you deserve the best". I already deleted it, so I'm paraphrasing. 

I know she's only texting me because I just posted that I got a great job promotion to facebook, and I know word got to her via mutual friends. (She's been blocked on fb). She has a great job too so it's not like she's after my money or anything. 

I'm over the breakup, but it was cruel to string me along for that long and play with my emotions. I haven't quite forgiven that part yet. 

What should I do? Text her back nonchalantly? Be like hey I'm good, doing well. Thanks for asking. Or just not text her back? I have no interest in keeping in touch, but I also don't wanna be a bitch.
<bot>: My ex just texted me after 1yr no contact. Still unhappy about how we broke up. What's a mature response?