Hey, take my lil silly advice, she might be a gemini or aquarius or somthing of that nature... Thats their personality except they see otherwise, there's nothing you can do to make them any different. As someone rightfully suggested, patience and prayer, but the question is how much longer can you relally wait??? She is 25, hmmm... Start letting go of her from inside for she might not change and even if she does, not right now... The question really is, what do you really want in a lady??? she still has YEARS ahead of her as well as friends that STRONGLY influence her, so, you dont really mean much to her right now.. "I love you" is a statement anyone can use, trust me.
God be with you as you make to take your decision. Your happiness, joy and peace of mind lie in your hands... Get to understand yourself first then it will be easier to know what king of person you'll like to spend your life with... Its is easier said than done... I am presently doing this right now, and trust me, this it and will always remain the most difficult thing in the world for me, but i have to let go and fast...no more heart breaks!!!