Only a girl will tell me the truth..?

No if she really wasn't into you then she would NOT have said that. I will give you some very helpful advice that you can take or leave if you want. You have a major vibe of insecurity coming off you. That is a major turn off to virtually all women on the planet. Do not be this way around her. It will make her not like you. I'm not being mean, just giving you a tip I wish a lot of men out there knew :/