I’m losing my mind

I can’t stop crying. I woke up with no pants on and know I went to bed wearing shorts so I said something to my fiancé. These are texts from this morning(The picture is being talked about are from the past because he used to take pictures of me naked/sleeping,at first I didn’t care I would laugh as our sons were in some and they were funny but then it became just to the point where I didn’t want to even sleep fully naked so he stopped)  , mind you We have a 2 month old and a 5 year old together so I’m scared that I didn’t wake up. There is also pee on the bed , I’m a grown up and wasn’t drinking or anything. SIDE NOTE: we have been going through a lot right now,I’d say the roughest part of our whole entire relationship. He’s also been jerking off at work and has next to me in bed. I think I have PPD but I also think he may need sex therapy or therapy in general. Does anyone have any insight on that or experience?