Girlfriend for dummies
This is particularly easy because all you have to do is to remember a wonderful time you shared together as inspiration. For instance, you can choose to call her bumble bee if you went to the park and she kept looking and touching the flowers. The most commonly used one and another good source of inspiration is food. You can choose from sweets, like cupcake, or you can choose from fruits, such as strawberry. She will surely appreciate it that you think of her as something as cute and sweet as the fruits and sweets you use.