Haven't posted to you beforee, but just got done reading up on your stitch.
Im sorry you are here, but there are wonderful people here that have already given you great advice.
Having been married young also (I was 19/ H was 26) There seems to be a mature element here missing in your W. Usually woman mature quicker than man, and it seems that its the opposite here. She has a child to think about, and I would hope that would be more important than the OM.
I hope you are able to get yourself out there and start detaching and doing things for yourself. What everybody is saying is spot on, Start thinking about you and taking care of you.
good luck!
me: 37 H: 44 Married for 18 years this june S7 S3 porn issues, and much more... since 7/06
Happiness can be found, even in the darkest of times, if one only remembers to turn on the light.