Wrong or immature!

I was seeing a guy for 9 months or so and 8 of those said months were fantastic. I struggled with a few personal things I kept to myself, and it took it's toll on how things were between us. After it was a little too late, I sorted myself out but the cracks had already formed and things were beginning to fall apart until I finally grew the balls to initiate 'the talk' about us. After about a month he deleted me off Facebook, I questioned it and he explained he was seeing someone else. We've barely spoken since because I'm nervous to initiate contact because although we still remained amicable I wasn't sure whether he wanted to even speak to me again. It's been about 3 months now since ending things so I feel it'd be a bit awkward to initiate conversation now anyway.