Guys what would your impression be?

Ok so this guy at work and I had a "thing" when we first met, (we never went out though)A lot of stuff happened since then (it was ages ago) He hurt me, and for a long time I hatedhim, then I started to feel indifferent, Recently I had a very bad experience with this other guy, and he hurt me and used me, and it made it seem like what the previous guy had done to me was nothing.I decided to forgive him so I added him back on fb saying I wanted to bury the hatchet, after recent things that had happened to me, he asked me if there was anything I needed to talk about, I said I might tell him sometime and thanks.Today was the first time I saw him at work since re-adding him, and he was acting pretty different, he stated touching me (just on the back and stuff) and pretending to knock something on my head (in a jokey way) This is how he used to act before back when he flirted with me, he hasn't acted like this for ages because when he tried to do it when I was angry with him I'd avoid or shun him.Do you think he might think I still like-like him?

did i give him the wrong impression?