In this situation I suggest you talk to him about it. If you feel ignored, he needs to know, maybe there is something going on for him that is pushing you two apart, maybe he doesn't like you anymore, or even maybe he is ignorant of the fact that he is even hurting you, doesn't realize it.
If you raise the point, and if he still feels for you then I'm sure he'll try to pay more attnetion to you and devote more time to making you happy.
Remember communication and expressing how you feel in a relationship is a key to a healthy relationship.
Best of luck.
-------
Danse Macabre.