I feel like a loser 

i am going through what you are, yes i think you are getting depressed, try going to a support group they have them at most hospitals. They get you out of the house and you can listen and discuss many of your feelings there. I been going for the last month 2 times a week and it is helping me alot with my depression. Or you can just intrduce yourself and say nothing it depends on the way you feel that day. You are reaching out already by being here. Keep up the good work.

I agree with everybody else Linny.  First off, I've seen your posts. You offer good advice, you care about the welfare of others, you seem pretty smart really.  These are not the usual signs of a loser.  I wish I could have these loser qualities! 

You really need to get out of the house.  By staying in the same place you're letting a bad situation drag you down.  It's like staying in the house of a dead relative while eating their food and wearing their cloths.  You're not allowing yourself to heal. If this were a horror movie the house would be screaming "GET OUT!"  Heed the House, Linny.

It doesn't matter what or where, Everybody is right, if you can get out for a few days, do.  Honestly though, even if you force yourself to go to the park, beach, or mall for an hour, that's fine too.  I make sure to go to my local bookstore, sit in the coffee shop and write.  It makes sure I'm in public. 

I would also recommend you start talking to a counselor. You're starting to show some of the signs of depression.  Although you have ever reason, and I think we've all been there, depression can be an endless cycle, and it feeds on itself getting worse and worse.  Talk to somebody.  Let this out.  If you're going to be in the same house, you won't be able to let this go, at least get yourself an outlet.

And don't forget we're all here for you too!

I agree with the others, and it is easier said than done. (allow some time to morn then focus on the time to heal)  Just know that you are not the only person on the planet that this very situation is happening to. What you don't see now, is that there is light at the end of the tunnel.  There are plenty of people right here right now that will  tell you they were where you are at today. Do your very best to pull your self together, then go on an all out quest for life.  You are not a looser! (and get away from anyone or anything that makes you feel otherwise.) smile! I promise you'll get one back :)

You definetly should not think of yourself as a loser. Think of this from a different angle...you are standing above him watching him ruin his life...all the while you are gaining a new lease on your own. Soon you will be free of this with a fresh start and certain happiness awaits you. You need to let him go and rest assured...he will tire of his new adolescence soon enough and the regret with knock his teeth in. Join a gym or something that you can involve yourself with when he is around. Make yourself scarce to him and occupy your mind with something new to you.

You need to get out. Find some friends to hang out with , go shopping or something. It will eat you alive if you don't get a break . No way for you to heal or move on that way!
You are not a loser....

oh my gosh - you need to get out of that house, even for a few weeks!  go stay with family or friends for a time, get a different scene and perspective away from it all and that he can't see how sad you still are.  never mind what he's doing, just try to get away for a few weeks - the two of you together in that house is just a constant reminder.  
my husband began an affair in nov 07, and i finally asked him to leave in feb 08 because he would not stop contact with her/seeing her.  he confessed all in april (but i knew all along) and asked for the divorce... i feel like i've been going to  a funeral for 5 months!  I know how you feel, but i cannot imagine if he was still here in the house!  how miserable for you!  
try to get away for a few weeks!  i hope you can.  hang in there.

My advice is first that you need to get out of that house.  Go and stay with friends and family if you have too.  Staying there with him is not helping you at all.  You need to get away from him.  My ex also cheated on me and it is a horrible feeling, but you need to pick yourself up, go out and buy yourself new clothes, start exercising, hang out with friends and family and start a new life.  When my ex said he wanted a divorce I had two options...either be depressed and do the poor me thing or pick myself up and make myself and my two sons happy.  I decided to do that later.  I bought new clothes and ensured that I looked great every day so that I felt better.  I also started to go out to happy hours with friends and surrounded myself with family.  Counseling for yourself to move forward will help too.  Being alone is hard, but I decided that being alone is better than being with someone that does not want to be with you.  You need to take control of our life and make your happy.  When I did all of that out of the blue I met another man and now I am extremely happy in a new relationship with someone that really wants to be with me for who I am.  Your husband (like mine) took something away from your spirit when he cheated on you, but dont let him ruin the rest of your life too.  You are better off without him.  Take control back and make changes starting today.  I also recommend reading the book "The Secret" that was big on Oprah about a year ago...it will help too.  Good luck!  Stay positive and smile!