I'm really glad to hear you've been having so much fun! I guess it is technically less of a dating simulator and more of a choose your own adventure type story but there are at least two dates for each of the 10 romance options sprinkled in there somewhere :) if you finish the game up and want to see a date specifically that was missed, I've put scene flowcharts in the "more options" section of the main menu that will show you exactly how to see each date for each character. Also if you don't feel like playing through the whole game again I have a "scene picker" selection in the main menu too that will let you play through any scene you want!
I must warn you too that some of the dates conflict with others, so for example you can't see both of Scylez's dates and also both of Liukhalo's dates. There are a couple instances where one choice will shut down the option for another. I think it's possible to see Liukhalo's second date after scene 7 in the right paths are taken. I'm glad you got to scene 16 at least because it's true he disappears for a bit in the middle but makes a reappearance in a fun way. It's fun that you managed to find Radolf's second date because his is definitely the hardest to find in the game.
Hope you continue having fun with it! The text scrolling feature is something I do want to add. Either that or a log that can be looked at from the pause menu to see previous and maybe missed messages.
Thank you for playing! <3