I need advice

So to make this long story short I started dating this guy in April and we broke literally 5 days later. The reason why I broke up with him is because he was being really clingy and was getting on my nerves. And now I’m starting to have mixed feelings about him and he is too. I don’t want to hurt him again when we broke up. I’m not sure if I want him back and he’s not sure either, but he’s wanting to ask me out but I keep saying that I need more time to think. Plus there’s only two more days left of school and I’m not going to him a lot anyways. What should I do?