need advice feel so bad right now

Hello everyone, I would like to describe a situation involving my partner that has been bothering me a lot ever since it happened. I would like to know how you perceive my behavior and whether I am spiraling into compulsive overanalysis or whether my doubts are understandable. Most of all, I want to learn how to break out of this constant questioning and this need to find out exactly what really happened. The situation in the bathroom My partner was in the bathroom. The bathroom door was open, and while he was in there, I did not hear a single thing. It was completely silent—not a single sound. Since, from my perspective, he had already been in the bathroom for quite a while and I had not heard anything from him at all, I eventually assumed that he had already left the house. As I approached the bathroom and was almost there, he suddenly came out and quickly gave me a hug. I then asked him what he had been doing in the bathroom for so long. He said that he had not done anything except briefly wash his hands and then come straight back out. This made me suspicious because I had not heard him at all during his entire time in the bathroom, even though the door was open. So I asked him why I had not heard anything. He explained that he had only turned the water on slightly. This was his explanation for why I might not have heard him washing his hands. Nevertheless, this does not make sense to me. I had the impression that he had been in the bathroom considerably longer than would be expected for briefly washing his hands and then immediately coming back out. What particularly bothers me is that, in my estimation, he was definitely in the bathroom for longer than five minutes. To me, that amount of time simply does not fit with the idea that he only briefly washed his hands and then came straight back out. As far as I know, he did not use the toilet or do anything else that would explain why he was in there for so long. This contradiction is what I cannot stop thinking about. He says he only washed his hands briefly and then came straight back out. However, I have the impression that he was in there for much longer. I cannot understand how these two things could be consistent with each other. Because of this, I am afraid that he lied to me or did not tell me the whole truth. However, I do not know that for certain. I am finding it very difficult to cope with the situation right now because I desperately want to understand what actually happened. What I noticed at the sink afterward Approximately 10–12 minutes after he came out of the bathroom, I went into the bathroom myself to take a closer look at the sink. By that point, the sink was almost completely dry. The gray ring directly around the drain was slightly damp. In addition, a small amount of water had collected in a little indentation where the ring meets the ceramic. There was also a small droplet of water hanging from the faucet. There were no noticeable splash marks. Overall, there was very little water visible. His clothes were not wet shortly after he had been in the bathroom. I also could not see any indication that he had dried his hands on his clothes. The towel was not wet either. Because I desperately wanted to understand whether the condition of the sink could be consistent with his explanation, I later conducted my own comparison. I washed my hands and deliberately used only a small amount of water. Afterward, I looked at how wet the sink was. In my experiment, the sink was slightly wetter than it had been when I checked it approximately 10–12 minutes after his visit to the bathroom. It was the same bathroom, no window was open, and the temperature probably had not changed significantly in the meantime. I also tried to take into account the time between when he supposedly washed his hands and when I checked the sink later. This comparison made me think about the situation even more because I concluded from it that he must have been in the bathroom longer than he claimed. However, I cannot assess for myself how reliable or meaningful this comparison actually is. Why I get so caught up in this The problem is that I cannot simply let the situation go. I keep going over every detail in my mind: How long was he in the bathroom? Why did I hear nothing? Why was the sink almost dry? Does his explanation fit with what I saw afterward? Could things nevertheless have happened the way he says they did? I try to connect the different observations to figure out whether his explanation could be true. At the same time, I realize how much this constant analyzing is affecting me. I check details, compare situations, and try to draw a definite conclusion from small things. Nevertheless, I never achieve any real certainty, and I start all over again. I am afraid that he lied to me. At the same time, I do not know whether my conclusion is actually justified or whether I am focusing so intensely on the duration and the individual details because I feel compelled to find an explanation. I realize that I am currently struggling to cope with not having a definite answer. I want to know what happened, and I find it very difficult to sit with the thought that he might not have been honest with me.