Read the convos if you have time

This guy I have been with for a while is dragging me down. He blames me for being unhappy all the time and we have issues so I broke it off last night. He threatened suicide all night then texted me this morning saying he wanted to be friends. He hasnt stopped talking since. My responses are short and limited because he has been blowing me up all day. He is really starting to worry me. Convos are below. How would you handle this?