New me and new relationship

Hi I was hoping to get some advice maybe from you guys I just started watching my Calorie intake A little over week ago and I also am recently starting to talk to a gentleman and possibly end up in a relationship after not being in one for a while. My problem lies in the he wants to take me out on a date to a restaurant, and I feel like when I go out to eat I can't eat anything because I don't know what the calories in the amount I'm eating is. Any advice would be helpful. 🤔🤔🤔🤔