Portia, Congratulations on the win! I'm not surprised that he contacted you. When he discovered that you weren't going to continue dropping notes to him, i.e., in his mind pursuing him, he came to realize that he might want to touch base to let you know he was still out there.
It's up to you as to whether you want to touch base w/him again. Can you just be friends, even though he's w/someone else? If you can, please keep your expectations at zero and try to remember that when he's "heavily" involved in other activities, his mind can only do one thing at a time, thus no contact w/you.
I'm sure if you sit quietly for just a bit, the answer will come. As they say, when in doubt do nothing.
Take care.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
