Dear straight dude on an dating website.
If someone doesn’t reply, they are probably not interested. If you then send another message, that isn’t going to help.
You may feel the need to get the last word in and really rub “their loss” in, but that’s not how it comes off to us. It comes off as if you’re a massive jerk who we don’t want to date.
If someone then goes “well, I guess I wasn’t interested, sorry,” insulting their sense of humor or taste in men isn’t really a great come-back. The only acceptable response is “okay, have a nice day.” Don’t be a douche.