Dating opinion

So I started talking to this guy at work that I had a huge crush on. I simply invited him out for drinks with a few other people but the rain canceled everyone’s plans .. we exchanged numbers and started talking he said it sucked we couldn’t go out bc of the rain but that he would like to do dinner.. all week at work he’s been saying let’s grab dinner Friday or Saturday .. yet when I text him he leaves me on red. Clearly he’s not interested but ladies please explain what is the point in hyping me up all week claiming you wanna grab dinner if clearly you don’t !