Short example. Texted girl from my class (after our online class ended) if she cared to join me for a swim (we did it once before) she passed with an excuse, I left her on read and went for my swim (end).

I didn't feel like responding, however, if there's better ways to retain attraction like not even opening the msg, respond with a thumbs up or a short msg, maybe it'd be worth?

It's more of a general question to leaving girls on read, not necessarily the one in my example. don't even know if it matters.