My ex and I have broken up for about 5 years now but keep in regular contact through the internet as I have moved away to a different city. When we were dating, I found him to be untrustworthy with other girls on the side (he claims nothing really "happened"). We've moved past this through the years and are pretty amicable.
I'm unsure how he feels about me. In the past year we've gotten a bit closer and when in town, he's taken me out to dinner. Recently, he was in town with friends and the plan was to all hang out together. When the time came, he felt he wanted some time away from his friends so we ended up going out to dinner, just to two of us, which he paid for again as well as offering to pay for my parking. He's gotten a girlfriend, who I doubt knows of these dinners (and if she does, I'm sure he tells her I'm just an old friend). Meanwhile, he'll sometimes send me messages about how he missed me, or will compliment me in my pictures. He always initiates the conversation, not me.
We've made a big deal to stay friends, so is this normal male friend behavior? We dated a long time ago for almost a year but it wasn't anything really serious. He's moved on and had other gf's since then. I don't want to lead him on, but don't want to over-react if he was indeed just being friendly.