Most Helpful Guy
Id say 90% of the time yes, yes it does. However it depends when asked/context.. If it is random and doesn't apply to the conversation being held then most guys will think you're interested in them.. Depends on the guy also
Most Helpful Girl
Not really. I've asked plenty of my friends if they have a boyfriend or girlfriend but usually whenever I ask my guy friends I'll just ask casually - like "you can bring your girlfriend to the event/party if you like". You can sort of tell from the answer to that question whether they are single or not.