Hello. UNDISPUTED_ANUS here. Sometimes, when talking to girls on Facebook, WhatsApp, text etc, I receive no reply but they do come online and see the message (sometimes they don't open it, but they've been online and so have received the notification).

Whats the best response to this? I've tried multiple: simply talking to them again later (I feel like a dick doing this), responding to my own messages ("hey UNDISPUTED_ANUS, how are you?" "I'm good thanks, you?" "yeah great!") (calling them out on their shit whilst remaining light-hearted) but there have been a few girls who have acknowledged that they occasionally don't reply to me but then continue to not reply and I find the only thing to do in such cases is delete numbers and remove from Facebook, along with no contact in person.

What is the best approach?