OK to cut story short.

First, I am a guy that has been looking for a partner through multiple platforms whether dating apps or real life meeting people etc.

This is a very common occurrence for me (it happened like 5-6 times out of the 8 girls that peeked my interest) where at first when we know each other, the conversation, the texting is very smooth, we both were very participative in our communication where I will ask her preferences, she will ask me back etc.

This could last like maybe days or a week or two.

Then suddenly the momentum changed, she started to not read / reply (not sure if she read cause she has blue tick off) and for the first 1 or 2, I did try and double text and the reply that came are very dry. Those after that which I did not push on never replied me after, even those that we actually bump to each other for real made it like nothing happened.

What the heck actually happened here though? I feel quite frustrated with this kind of behaviour like, if you didn't intend to like even be friends, why string me along?

Also, I think even at my age and my so many failed experiences atm, I do not know if the girl is really vibing with me or she just being friendly. Though, it doesn't make much sense for both to suddenly ghost me like this, so I wonder what went wrong.

NOTE: I was just playing along the conversation and did not show any signs of desperation or aggression before they ghosted me and the conversations were very smooth.

It's just the first few days, so fast ask them out? I dunno if it will be too fast or not?

When you know the girl really isn't responding positively to your "going out" invites, is it time for NEXT? Cause some people told me, if the girl within first few days we chat doesn't agree to go out with you, then I can just find NEXT, she isn't interested.