Maybe she do not think you are serious. Try a different approach something you don't normally do then see if that works don't give up she will come around.

She might think you're saying that you like her as a friend. Try a different approach. Compliment her often, whether it's on her clothes or some aspect of her personality. You could also ask to take her out do something that could be seen as romantic. Good luck!

Do you flirt with other girls? If so, put a sudden halt to flirting with them. Start noticing her for more than how you feel around her. If she doesn't take "I like you" seriously, she might not take compliments you give her seriously, either. Maybe you could try taking her aside and (let's say her name is Sally), say "Hey, Sally, I really need to tell you something." When she asks you what, say something like, "I really need you to hear me out right now without any interruptions." *pause, wait for Sally's reaction, then* "Look, I know you don't think I'm serious when I say that I like you, but I really, really do. I've grown quite fond of you as a person in the short time we've been friends. I like you exactly as you are. I know it might be hard to believe me because of your last relationship and I can understand if you have trust issues, so if you don't like me back, . . . I understand. I'm not going to be Prince Charming and stand here trying to impress you, but I can assure you that I believe in being honest with you about my feelings. You don't have to believe me, but I hope that you do because I really do like you. I'm willing to give you as much time as you need to so that you can get used to the idea. The ball is in your court now.If you like me back,awesome. If you don't, just please tell me so that I can know I need to try and get over you, even though it will be hard." Say it firmly and seriously. If she doesn't believe you, at least you'll know you tried. Oh yeah,and only say things like that if you mean the words you are saying. If this is bad advice at all,just tell me.

Hey guys I'm going out with her this saturday. Can you please give me some suggestions which could help me make her know that I'm serious. By the way we've been dating a lot these days. Is that a possitive sign or just casual. I'd be very happy to have your suggestions.

I think you both have insecurities, thus it will be harder than usual to win her. People with baggage finds it hard to accept compliments an good will as they are afraid to be hurt again. I reckon she might have an idea you like her, but she is refusing to believe it. Its just her way of protecting herself. Write her a letter, tell her about how your past affects you too, but you want to take a chance and love again. And you want her to be your special one. Tell her honestly. People are able to tell how sincere you are when you are just being yourself. Send her the letter personally with her favourite flower or chocolate, just to let her know the letter is of special content. It just might work. GOOD LUCK :D

ask her out on a date. A real date. call her...make plans for the upcoming weekend and take her out. then kiss her. lol