1. Sincere excitement about a romantic interest and a straightforward, rather unsubtle expression of their interest. For all our extroverted ways, we're pretty darn awkward and shy about expressing feelings to people who really matter and can't wait to let them and some others know.
2. An honest effort to be honest. I wouldn't dream of "keeping my options open" romantically. Frankly, the thought itself is rather abhorrent. If I felt like the person I was interested in and I had reached a point where we were going to try to make a go of things, whatever that might mean - crossed a physical or emotional line, I would immediately let anyone else know that I was going to concentrate on making it work. It wouldn't be in a way that would pressure on the situation by calling it anything it wasn't but for myself, it's about living up to my standards.
3. If in the position where the other person felt/needed more than I could offer, I would do everything possible to make it crystal clear to them that I didn't feel the same way. I would do this for THEM because it would be the considerate thing to do and what I would expect in a similar situation. No grey area possible because the grey hurts.
So, when folks questioned his ENFPness, I think we're all thinking that this fellow who has caused you so much hurt just doesn't reflect our experience. He may very well be an ENFP but he's just not a mature considerate person. As Marm said, they come in all MBTI flavors.
Whatever his MBTI type, he didn't treat you well. That's unacceptable. It's okay to blame him for that. Doesn't make him the spawn of evil but I think it's okay to be angry and use that anger constructively. You know it's okay to move past when you can think of him fondly and as human without wanting to see him or make things work with him.
Wondering if he thinks of you...I've certainly been there, finding it difficult to forget someone and wondering if it's easier for them, darn it...
Here's what's difficult though - how do you stop and move on? Is wondering whether he's thinking of you helping you make that transition? Will 3 or 30 of us here saying romantic interactions have a profound affect on our lives going to make transitioning on easier? if yes, by all means continue to tear things apart. If not, find a way to closure, the way others have suggested. I don't think anyone who's said that here meant to imply that it was easy or said that in a patronizing manner. We've all been there and mean to say, "take care of yourself, that's all you can do". Figure our how YOU feel and what YOU need to feel better about the situation and move on.