Looking for help with complex choices

I need a little help with making choices that my story will remember, I have been asked to do another love interest and I don’t have any idea how I would make a choice to pick one over the other or pick to do something with one that could effect the story later on. For example (Just gonna use exactly what I need to use it for so the advice can be most effective) I have my main character Charlie and the two love interests Ryder and Axel. Say I wanted to hang out with Ryder and chose to be romantic with him and this would change how Charlie acts around Axel in future episodes (like if she flirted with him) How would I do that?

if you need more help, just ask :slight_smile:

Thank you for this, I hope it helps and thank you I will be sure to remember to ask if I need more help.