Most Helpful Guy
I think both @Path1993 and @Pais13 make good points and both are worth considering. I think you also should consider what it is about this new guy that makes you so sure that he is what you want and deserve. Not understanding that will always result in a crap shoot in the outcome of any relationship no matter how much time has passed :)
Most Helpful Girl
I feel That is way too soon, @G1992, and something Sweet Could end up Going... Very sour and go south.
With being in a very long Real Relationship, you are still pining over the Other half. You may Think you have found someone to take his place but may also find yourself Constantly Comparing him to the skeleton that is in your closet.
On another note, if the Other comes back and wants to work it out, you will find yourself in a "Triangle Threesome," where you are at the top, looking down, from side to side, at the both of them and trying to decide What to do next in this Full Circle pattern that it just may end up to be.
There is a lot to think about in rushing into another relationship so quickly. If you are in one now, all I can say is go sow with the flow and nurture and nurse it to See if It might just... Grow and then Bloom.
You have to remember here, dear, you are starting from scratch now and all over. Like the first time, learn from any mistakes o you don't carry them over to this relationship and vice Verse... You certainly don't want anything from the past haunting you.
Good luck. xx