So sorry for what you are going through. I hate to tell you, but it sounds like Becky B hit the nail on the head. I also looked at your profile and read the requests you have put out in the last year and now agree even more that there is something going on. I am married to my best friend(friends for 17 years, together for 15, married for 9). The one thing I knew would never happen was an affair. Well, I was wrong. I knew things were not going well in our marriage or finances but thought it would pass. He was not "involved" in our family and starting acting more single than married and I honestly just thought it was a phase. Well, then I got the "call" and it was her. I never in a million years would have suspected and even 1 1/2 years later, I am still in shock. Luckily, we have managed to make it past all of this and are stronger than we have been in a long time.
The reason I tell you all of this is b/c I was in denial and I am afraid that you are, too. I know it is easy for someone on the outside to assume the worst and hard for the person involved to accept or believe. I finally started keeping records of everything and I mean everything and eventually got a private investigator involved, too. I guess I still needed confirmation for myself.
Things are much better in my marriage now, but I learned in the process that both me and my daughter will be fine either way. Sounds to me like you are already a single parent, so you can do it, too. I know you love him, but is having him around really making your life better? I think that the worst thing we can do as parents is to stay together for the kids' sake. All that does is teaches them that marriage is supposed to be unhappy and that is just not true. Obviously there will be good and bad days, but the good should always outweigh the bad. God knows it is not easy, and it shouldn't be b/c nothing worthwhile is, but it also shouldn't make your life worse.
All of that being said, I hope that I am wrong. Between the jobs, the money and the strip club, though, it sounds to me like you are way past due for a serious talk with your husband and/or a lawyer. You are worth more than that and you and your daughter deserve better. Take Care.