Thank you all - I'm so impressed by the open and honest conversations here!

I think ill hold off a while....

I would say, you're not ready.  It's flattering when someone else gives you the attention that you lacked, yes.  But I agree with others that it's not fair to the individual who eventually gets trapped and in the middle.  Second, when you look at the larger picture, what is the motivation behind it?  Do you want to piss off your ex, get back at her?  Etc.  If you're not divorced yet, you're not finished and you still have a lot of baggage wrapped up that needs to get taken care of, ie the divorce.  And it's possible that yes, right now, you may just like the thought of the 'shiny new toy'.  It's not fair to you, your ex, or the new individual.

It's not to say you can't make friendships, but I would be very careful, don't lead anyone on, be straight forward, honest, and hold your ground to any advancements.  There is a line that can be crossed, even if your separated and once you cross that line, your ex would use it against you in a heart beat. 

So, the real question is... are you willing to cross that line?

No, you are not divorcing yet, why hopped onto something untll you are free to do so. Yes I am sure it makes you feel good for someone else to be interested in you but , we all know thats the ego talking. he he sorry had to say that!
If you don't know where your marriage is going, why start a new relationship and hurt them in the long run. Give it some thought maybe spouse can use it against you in the future.
Women today have had to fight for what they want so we are a lot braver and don't give a hoot about things.

I say go for it and just keep it as friends right now.  If you don't feel you can keep it a friendship until your divorce is more organized, I would hold off.  I am going through the EXACT same thing...I am separated and we are in the process of selling our home, etc. but we haven't filed for divorce just yet.  But, I have been out almost every weekend with guys from work just hanging out- nothing physical at all- and that can be a good thing to help you move on and keep your mind off of things.  But don't make the mistake of pulling her into something she has no business being a part of.

that sounded bad.  I should have said

1) thanks for your comments. wise advice indeed.

2) im confused about my marriage / where we are

3) somebody has said "hey I'm interested" and frankly, it feels good...

I dont know where we are frankly...  Im not sure what we are doing.