Is he not interested anymore?

Well I decided to cut all contact with my ex as he was the one who initated the break up so I didn't want to be this clown for the next few months dwelling over him! As soon as I did that I met a guy, he gave me his number and wow was I over the moon!! Lookwise his probably everything I would go for, I fell for him straightaway! (10 out of 10) ! I texted him that night and since then we have spoke to eachother everyday n I'm starting to get attached to him (n its only bn 3 weeks, I don't know if I'm just trying to fill a gap in my life) but I have never fallen for someone this quick! The problem is (because there always is a problem)....last two days we haven't really talked, he started to ring me everynight which I loved! Couldn't wait to hear his voice and its just stopped... Plus we used to messages all day and now for example yesterday, he messaged me yesterday in the evening and It was very brief :( ! Last about 10 minutes and that's all! is he not interested anymore ? Or maybe my first impressions were right his a bit of a player as he is very good looking?! What should I do? I really like him and I was hoping maybe sometime in the future me and him would have got together! :( should I play hard to get ? Or jus carryin on being myself