Happy, Sounds like you've been doing a lot of thinking and have come up w/some plans for you and your son. Please listen to the ladies that have posted to you. Living w/a mlcer is very difficult and yes, it gets to be a very frustrating time for your the spouse. It's important that you find your balance and take care of yourself.
I see you've been invited to go bowling. That's another activity that will get you out and about w/other people. I think you would enjoy that.
Let me say this, I think you are a very independent and determined woman and when you are ready to drop the weight, you'll do it.
Come here to vent. We are always here and will be happy to listen. Please do not be hard on yourself. You've been trying very hard and sometimes, we just have to drop the rope and live our lives to the fullest. Fear of the unknown tends to raise its ugly here every now and then and that's when we tend to stall along the path because we don't know what the future holds. You can do all of the right things and still nothing changes and the same applies to not doing them too. That's why it's important to try different things to see what will work for you and your situation.
Try not to compare your situation w/others. Even though many of the situations have similar traits, each situation is different because of the personalities of those involved, children, jobs, etc. Take away only those things that will help you and leave the rest behind.
Happy, you are doing great. Try not to allow the bumps in the road to discourage you. Okay?