talking to this guy with bpd idk what to do

i been in the talking stage with this guy for 3 weeks now but ive known him and we talked a couple of times before too. he seemed really nice and very understanding but he honestly has a very troubled past. A lot of people dont fuck with him and he even told me this. His bpd scares people away and hes also very loud. He has got into many fights with people but as far as i know its because they threatened him first. I honestly dont know what to think of this. I have a lot of deep talks with him and hes one of the most understanding people ive ever met tbh but all of this scares me. he had a very troubled past. Someone told me that he couldnt deal with it when his ex broke up w him and apparently he followed her everywhere. This was 2 years ago. He has told me how severe his abandonment issues are he told he doesnt care how i treat him as long as i dont abandon him. He says im the only person who ever understood his bpd. A lot of my friends arw scared of him and told me to stay away from him but some told me hes very nice and he was always nice with them. Honestly i dont think he would ever harm me unless i did something to him but i feel like im walking on egg shells around him with the stuff i heard honestly. Hes still one of the nicest person i ever met and hes very understanding until u trigger his abandonment issues he starts splitting. I started getting a bit paranoid because of my past. Idk how i should distance myself. He really appreciates how much i understand him and how much im there for him and he never seemed like a threat. he just always tells me he was neglected and no one ever understood him and just called him crazy for his disorder. He appreciates my help a lot and he is very attached to me but its making me paranoid if i ever have to be in danger again and id like to stay as friends. Idk what to tell him.