You may not be her first, her last or her only. She loved before she may be love again. But if she loves you now, what else matters? She's not perfect, you aren't either, and the two of you may never be perfect together, but if she can make you laugh, cause you to think twice, and admit to being human and making mistakes, hold onto her and give the most you can.

She may not be thinking about you every second of the day, but she will give you apart of her that she knows you can break her heart. So don't hurt her, don't change her, don't analyze, and don't expect more than she can give. Smile when she makes you happy, and let her know when she makes you mad, and miss her when she's not there.