A man asks you to go to the gym together

Thank you for your invitation! I'm flattered. However, as an English news article editor, my schedule is quite tight with work and editing responsibilities. While I do enjoy the idea of going to the gym, I'm afraid I can't commit to a regular gym session at this time. Perhaps we can find another time when my schedule is less hectic, or perhaps we can explore other forms of exercise that might suit my schedule better. I'm always up for trying new things, and I'm sure that there are plenty of other ways to stay healthy and active. I hope you understand my situation. Let's discuss it further and find a solution that works for both of us. Thank you for your understanding!