He is sorry. the question is, for what ? Did he cry before you knew ? Or only since he got caught ? I have no doubt he feels like a louse for hurting you, but his greater portion of pity appears to be for himself.
Tears are so easy. So very manipulative and self serving. when done in front of an audience who is then potentially provoked into placing the cryer's feelings on a high plane than their own.
A good cry releases his tension, but adds to yours.
It attempts to perform the role of a wordless confession, you are allowed to see the extent of the guilt, but not know the details so you can make your own judgement as to whether your lines in the sand have been crossed.
It tries to stand as action of contrition but costs almost nothing compared to being utterly upfront and honest about what happened, without being asked.
It puts you on eggshells, will further questions or evident hurt on your part cause HIM pain ? Which makes any further questioning, or evidence of your hurt, seem indelicate or insensitive on your part.
It is the refuge of a child, a good cry, tell mummy I am sorry and all my bad feelings just miraculously go away, never mind about mummy whose instincts force her to priorities the infantile one- her feelings are not the point.
A man who never cries is not unaware of the impact his most volatile tears will have. So it needs to be asked, to what extent are they being uses as a tool to dig oneself out of a hole ?
You are doing so much better than most. You walked upstairs and left him to it. You are able to remember that this is not not your doing and your feelings are not the secondary concern here.
Which means you are going to be fine, because you will protect yourself from banal manipulations of emotions.
I'm not going anywhere love, and I promise I will never tell you what to do. I'll happily play devil's advocate and shine a light on the more typical tricks and slights of hand (tongue) you so often see performed in this kind of context. But at no point will I ever ask you to take my word for anything. It is food for thought, your say, your interpretation is the only one that counts. As long as you need to talk and see what is happening in a more objective light, I'll be on the thread.