What should I do?

Okay theres 2 boys at my lunch table. One I kinda like. Today was his birthday and I decorated his locker and everything and when I went to the bone fire he gave me a huge hug and lifted me up and everything. Now theres another kid, my ex boyfriend. We have kinda been flirting with ever sense he broke up with hes other boyfriend. Today he asked me if I liked the other kid. I was like shocked and he was like was that a yes. And I was like I don’t know. He said is that a no and I was just like still shocked so I didnt say anything. Then he asked me if I was going to the dance and everything. During our pep rally we were also kinda flirting and I didnt get to talk to the other kid because he went home. Please help!!!