She may or may not love you (as you wish/feel for her) and may or may not trust you, same thing. I had a problem with my husband when I was dating him and my therapist got her point across by asking, "How long did his mother know him?. . .And how long have you known him?" LOL! I wouldn't pressure her to say I love you since she may have been "abused" along those lines; her parents may have expected/forced her to say things she didn't feel or want to say so actually getting her to say it when she doesn't want to might hurt you rather than help you/her. If you love her, think of her first; don't worry about "words". They may make you feel better/more secure but they're only words. Focus on what makes her feel better/more secure and she'll try to "reward" you, I promise. She doesn't necessarily care about the words (that's a cliche, similar to giving candy/flowers on Valentines day). Ask her (or better yet, observe) what she likes and do that. She knows you like her to say "I love you" first so she'll probably do that when she feels you are supporting her better.