How do I know if a guy isn't interested in you online? I just don't want to find a guy that I'm interested in getting to know better, and then having him not talk to me again for no reason after we've spoken for a few days. I've had that happen to me a few times already, and I just want to know so I don't run into a guy that's not interested in me online. I'm using an online dating service, which I might stop using the account soon because I'm kind of tired of finding guys that aren't interested in me or that I'm not interested in. Plus, I feel like I'm so desperate, that I need to use an online dating service to find a guy that's compatible with me.