[header] How to date a guy that likes another girl [title] Find out whether there is someone he likes already. [step] Make sure this isn't just in your imagination. How can you tell? Here are some indicators : [substeps] He talks about the other girl a lot. 
He seems to spend a lot of time trying to be near the other girl. He has told friends he likes her, and this has reached you through similar friends or friends of friends.