1. Mostly importantly the person needs to be emotionally ready and opened to the idea of a relationship. That means no recent or pending divorces or breakups.
2. The person needs to be willing to provide me with an adequate amount of attention. This could include phone calls, text messages, emails, instant messages or even Facebook posts. Anything that let's me know you are interested and thinking of me. But there is also that fine line between enough attention and too much attention.
3. Someone who is willing to include me in their life. I don't expect or want to spend every waking moment together but it would nice to know when you have other plans or when we might get to see each other. Also meeting their friends is another way to include me in their life. I would like to think the friends have at least heard the person is seeing someone.
Obviously this is just a start. I do intend to compile a more complete list in the future. And to answer the question, no, the person from the past does not meet any of these criteria. What I don't know is if he is capable of meeting these if really given the opportunity. I might not ever know the answer to that one.