I believe you about this but you are not coming of this way in these posts. You are seriously resentful of your H. Some of the stuff you complain about seems serious while other things seem petty (but if you are truly afraid to confront him, verses just not wanting to deal with him, that is a serious issue). Your venting here probably relieves some of your anger but it might be a warning sign that you really need to do something about your life before something seriously bad happens. I think that CrispApple was right that "... it's just how both of you are expressing your unhappiness,and it will eventually take its toll and come to a head."
When I made a near lethal attempt nearly two years ago, I was feeling very angry at my H when I did it. We were both under a lot of stress. I opted to seek therapy and have done loads of self reflection since that attempt. At the moment, I am feeling content about the marriage (I have a mood disorder so this could change). I don't know what the answer is for you only that just venting on PC may not be enough given what you have described in this thread. When we don't look out for our own best interests, we are allowing bad things to happen to us. So many people have provided you good advice here. I wish I had that kind of advice BEFORE I attempted. You say you only want to vent but, subconsciously, you may be even more disturbed than you are admitting to yourself (I say MAY, I don't know).
PS. You say divorce is out because of debt; do you know how much debt you are in and understand how bankruptcy laws work in the US and why they are there? Debt balloons out control when it is ignored. You need to make sure compound interest is working for you, not against you. Whether you divorce or stay married forever, debt cannot be ignored.