LOL with an attitude like that about men, of course you are going to meet lots of scums. If you already go in thinking this guy is probably a scum cuz most guys are scums, everything he does will be suspicious to you.
Like I said, pay attention to a man's actions, not to his words. It's quite easy to tell the basic character of a person.
For example, GF was convinced that YG was scum, and she dismissed his heroic actions. Wrong approach. Mu Nian Ci listened to YK's words and ignored his actions. Wrong approach again.