<human>: Can you condense the text into a few key points?

Before I met my ex, I used to be affectionate towards important people in my life. When we started our 2 year long relationship, he absolutely *hated* this, and when I tried to show him love, he ignored me and told me to stop. It got to the point where if I wanted to talk to him, I couldn't have a single tiny trace of emotions in my words or else he would absolutely flip out on me calling me "over emotional" and saying I needed to "chill".

I broke up with him about 6 months ago, and the "no affection" has become a part of my life. I feel like if I give somebody affection, they will stop liking me and reject me, as it's happened for 2 years of my life with him. (it's just the norm for me now)

I've recently met a really nice guy, who treats me like my ex never did. However, he told me today that he doesn't think i'm very into him, as I haven't reciprocated or initiated anything, but it's only because there's a voice in the back of my head saying "If you reciprocate, he'll make you look stupid" because my ex did this for 2 years. 

I don't know what to say to him, because I really do like him, and I don't want to lose him, I just am having a ridiculously difficult time showing him I like him (I don't know how to) and he definitely seems to notice this..
<bot>: My ex yelled at me whenever I tried to show him love, and now it's ingrained into my brain that showing love=rejection and arguments