One more thing:
She has told me that she wants me to show er more affection and to make love more often. She wants me to make her feel appreciated, sexy and beautiful. I have to agree that I was not the most affectionate person for the past several years. Even though I love her very much, I took it for granted that she knew. She said that she would be giving me a year, and if that did not change then that would be it.

I find that I would understand more if she would have been really upset for weeks or even months and then slowly started to warm up to me to the point of being affectionate and loving.
But after only about 2 weeks see started to warm up to me and now she is treating me like nothing ever happened. Now I realize that I should probably be jumping for joy and really happy about this. But for some reason, I feel like maybe she acting this way because she is not dealing with it well or in a healthy way and that things will get much worse.
Do you think it is my depression and anxiety that is causing me to read into things that are not there and blowing things way out of proportion?

Now I know what I have to do and I am certainly doing it and will continue to do it, which is to show her a lot of love and affection, do you think that can save our relationship?

From things she has said in the past, she seems to agree and understand that what happened was because of my Mania. (I am not using it as an excuse, what happened is truly out of character for me and it confuses and disgusts me). That being said, I realize that something like that is going to hurt regardless of the reason. However, I am wondering if it would be a little easier for her to forgive me and move on because she realizes that it was not the "real me" and that it was a symptom of the manic episode?

(My first manic episode where I had the indiscretion was 17 years ago, I have not had another episode like that since the one that happened a few weeks ago, because I drank for 2 weeks on vacation and then I reduced my meds when I came back home. Nothing actually happened, she saw the pages I visited on the internet and confronted me before I woulld have actually had the opportunity to act on it. I also would like to believe that I would have come down form my manic state and came to my senses before I would have had the opportunity to act on it, but that is just speculation. I have been sincerely remorseful and have apologized to her several times. I assured her that I will no longer drink alcohol, that I will no longer play with my meds. I have also created and shared my Personal Action Plan to deal with my bipolar disorder to prevent me from doing anything I might regret again) I am totally determined and if I stay on my meds and don't drink, I will never do anything like that again!)