I think you are right..."if she came back for the right reasons". That would be the hardest part; actually knowing whether it was because she wanted you or because she didn't want to be alone. If the opportunity presents itself, don't jump with both feet....suggest you are open to the possibility, but she needs to work on herself to determine if it's because she loves you and wants the marriage to work. You deserve nothing less if you are to take on this responsibility.
(((BC))) this is a REALLY good point. Its taken me a long time to get to this point, but a reconcilliation between my H and I is not even a consideration at this point. He has SO many things going on in his life, decisions to make, realizations to come to, etc... I'm just trying to be his friend and work on me. I can't tell you what to do, but I would put all thoughts of her coming back and making the marriage work until she has done whatever she needs to do and her life is a little more settled.
My reaction was exactly the same when I found out about OW being pregnant. I told my H to tell her to give it to us and we would raise it. I still know in my heart of hearts that I won't be mean to this child, but it will be a constant reminder of a very painful experience. Not only for me, but for my kids as well.
I will be here for you though. No matter what, you will get through it and life will go on.
M:39 H:39 K:S14;D8 T:22yr M:15yrs S:12/28/07 EA/PA 3/14/08 OW preg 11/17/08 born 12/12/08 his ~~~~~~~ Never allow someone to be your priority while allowing yourself to be their option