Relationship Topic: Moving On From A Woman

I'll admit, part of me has been depressed off and on for about the past two years. I'm 33 (about to be 34) and started dating again about 3 years back. I have never had much luck with dating and this time hasn't been much different. I've been on dates with a few women, and all but one pretty much went nowhere.

The one women I did go on a second date with, I felt like we really connected. I'm not one that can make a lot of people laugh but I could make her laugh pretty easily, usually a pretty good sign. She was cute and I was physically attracted to her. She was a pretty low maintenance down to Earth woman and we are both Catholic and came from small but close families. I was looking forward to a third date with her and she seemed to feel the same way. Heck I figured on the third date I would either kiss and possibly make out with her.

To get to the point she messages me two days after the second date and says she liked hanging out with me but doesn't seem me as any more than a friend. Essentially I got "friend zoned". Since we do have some activities in common I took her up on her offer to still be friends.

To this day I still look at her and wonder what could've been though. I still have occasional dreams where we are together, in a relationship, cuddling, kissing. Since then I have had no dating luck and really haven't fully moved on from her.

She's been with two guys since me but neither worked out. I get the sense that her biggest flaw is that she really doesn't know what she herself wants in a relationship.

My point is this, I know it's not healthy to keep wishing and hoping for something that won't ever happen. How do I move on from this? How do I close the book once and for all on us ever being together?