In fact, it's not only that you feel too good when they boast you, the truth is that you also expect them to boast you for whatever you do. So, you are the one who create that boasting for yourself in order to get that great feeling of pride. This means that you need appreciation from others for whatever you are doing. In other words, this mean that you depend upon others.
But the question here is that for how long you will depend upon other people in order for you to get that great feeling?
What if other people don't appreciate what you are doing?
What if other people stop boasting you?