What do you do when a guy lacks giving you attention?

Okay so this is the only place I trust with my issues, Imtgis guy is been dying to date me for a while now, and I finally decided to give him a chance like two months ago, but now it's like we're not even a couple, he barely ever text or call me, I don't think I exists to him anymore, and when I call most of the time he doesn't even answer, I would talk to him about it and he would just act like im stupid or something, I don't know what to do, I actually thought we had something together?😒