This is some dense shit

Hi guys, I've been interested in seduction since I was like... 14-15 maybe? I've read, I've "studied", I've seen and tried a lot of things. I've been doing quite fine, although I come from a third world country (Chile) a lot of the rules applies to these parts: body language, mixed signals and all that. I would like to say that i know the ins and outs of all thos seduction things but no, I don't know everything and, sometimes, i feel that i know nothing.

With that explained, because of covid you can't go out and I've started using A LOT the dating apps and... Things are different. As a man, you like almost everything and wait for someone interesting. Is widely known that most women use those dating apps to laugh about the guys there so... Yeah.

I've come across a couple of girls that want to talk but... Don't. Let me explain myself: you are having a good conversation and suddenly they stop replying. I usually don't write an additional message asking "U there?" Cuz that's annoying. After a couple days, they text back with something like "You've been quiet lately" and the one who didn't replied back was her. The first time that this happened, i resumed the conversation as if nothing was happening but the next time (with another girl, same app)... I waited a day, another day and, if I'm honest, i liked this girl a lot, the conversation was amazing and she was cool, so, i messaged something between the lines of: "Hey, texted to know if you're still there and interested to keep in touch. Here's my number xxxxx xxxx.". She texted me the same day as if nothing happened, we keep talking and then, again, silence. I waited a day this time cuz when we start talking we won't stop till idk, we fall sleep and I was like "ah, fuck this" and didn't wrote her. This had happened with like half of the girls i talk in apps and a lot of them, when I drop the question of "are u still interested"? (Not like that but with other words) they always say "yes, i don't want to stop talking".

With all this, i want to ask: when it's okay to stop talking?

Sorry, no TL;DR