I'm gonna tell him off! He was so rude!
What did he say that upset you to the point of wanting to tell him off?
I tried to give him my number and he completely ignored me!
You should not assume people are still interested in you. You cannot expect everyone to want to date you especially if you make a big deal out of everything.
No, I deserve the number after all the flirting and work I have done.
It's understandable to be a bit disappointed that things didn't work out when you wanted them to. However, it is better to move on and find someone you can make a serious connection with instead of someone that shrugs you off.