What does this mean?

I met this amazing guy and we have been spending time together and we chat for long hours and we usually have fun together but the problem is he never calls me and he doesn't sms me unless if I do! Right now it's been 3 days and he said he needs time but...

in the meantime I'm dying and don't know what to think because if I call him then I'm desperate and if I don't call him I stare at my phone and ...I've got pride so I'm thinking to just forget him and be single again though I really like him. It's like I'm just something he comes to see and never bothers to check in on me or ask how I'm doing!! It sucks

I think you need to have a talk with him. Let him know your fears and anxieties, and make sure he knows that relationships go both ways. If you're the only one putting effort into the relationship, then you're only setting yourself up for heartache in the future. When you like someone as much as you seem to like this guy, then you need to make sure he likes you back just as much. Nobody deserves to to be in a one-sided relationship.

Talk to him and tell him how you feel. If he's still the same, believe me he won't change and he's not worth it. Why would you want a guy that will make you feel like this when you can have so much better?

Talk first, but if he doesn't make the effort move on and find someone who will call you 15 times a day to tell you that they love you.

I would take that as he isnt all that interested in me. Maybe your not the only one he spends time with, and talks to. When a guy is really interested in a girl, I would think he'd would want to talk to/see her whenever he could, not just when the mood stikes him.