About a month ago my BFpwBPD suddenly began severely distancing. It's been getting worse and worse but he maintains seeing me once a week for 2-2.5 hours at night. He started getting really mean and cold towards me. We had a big fight a couple of weeks ago about how mean he was being to me and the next day he told me he was in bed crying all day and started cutting himself again. He seemed to calm down after this and acting more himself but still fairly distant and only seeing me once a week still.

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A couple of nights ago we had sex and I saw his cuts on his thigh and there were a LOT... I had assumed he had just a cut of two but there were like 20 ten inch cuts or something. He's obviously in a lot of emotional pain. He basically told me that once he is done "going through shit" we'll get back in a relationship again. He refuses to say what he is going through but I know he also has depression. He also has been really self-deprecating lately and twists anything I say into thinking I'm meaning he's horrible.

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A weird example: One guy I dated for a week recently hit me up and sent me their new picture. I'm not interested in this guy but my ex-BFpwBPD had always wanted to see a picture of him but I didn't have one so I showed it to him. I was never even in a relationship with him, just a casual thing that only lasted like a week. He got a weird look on his face and said "he looks a lot like me", which they do have a similar appearance. Their names also rhyme. Then he said "ohhhhhhh, I'm rebound from him! That's why you picked me. I look like him and have a similar name. If you had your choice you would have been with him not me."... This blew my mind. I'm in love with this ex-BFpwBPD and he knows I'd marry him if I could. I have no interest in that other guy and never had anything special with him. He has no reason to not know I deeply care for him.

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Anyone experienced this type of thing or have any thoughts on it all? Does it seem like the depression that is what he is going through or some BPD thing?