should I text him??

So I had a really good guy friend that I started to like but I never told him but we would facetime every day for like 3 hours and we would talk about everything but all of a sudden a few months ago we both started losing contact... Although we saw eachother in school we didn't talk that much all of a sudden... I feel like it was mostly him but it could've also been me... Anyways I started thinking about him and I feel like I should text him asking what happened between us Bc he made me really happy and he was a really good friend