Is it best to show minimal emotions to a guy?

I was with my ex-boyfriend for a little over a year. He hated when I expressed too much Emotion. Especially when I talked about feelings or whatever. He didn't even like it when I was being too loving, or showed concern for him. I think it was part of the reason he broke up with me. After 8 Months of being single, I'm in a new relationship. We've been together about two months now. I've been afraid to let him really know me, I avoid talking about my own feelings, And avoid letting him know that I really like him a lot. He's very sweet and affectionate, but I've resisted being the same way towards him most of the time, for fear of driving him away. I even always wait until he texts/calls me first so I don't seem annoying. Is it better this way, trying to act uncaring and emotionless, or is it better to just express how I feel? Honestly, I think my perspective might be a little screwed up. Need advice!