If it was me personally, I'd think that people come and go all the time. You're on to continue with your life and grab a new opportunity and I'd wish you well

If it was me personally, I'd think that people come and go all the time. You're on to continue with your life and grab a new opportunity and I'd wish you well on whatever you do, and I'd thank and appreciate that you worked weekends and nights to make the app happen.