I learned from him that creating distractions is a healthy coping skill for dealing with pain. It helped me realize the distractions I've created help me not have to experience the pain 24/7. I believe this is the foundation of GALing. This is why GALing is so important.
I think there are other benefits as well.
On the hand, yes, it keeps you from thinking about her. But, also, at the same time, you are learning new skills or hobbies, you are regaining self confidence, gaining self awareness, developing your own social circle outside of W. And so on.
At the start, yes, I think it's a way to avoid the negative. But later, it becomes a way to build positive.