He doesn’t think he’s being manipulative

So my old friend (26m) confessed his love for me (24f) after 5 years of friendship, I didn’t feel the same and told him, we have never been intimate & our relationship never romantic, my friends tell me he’s trying to love bomb me by buying me food & gifts I never asked for then bringing it up all the time to make him look like a ‘great guy’ I got very overwhelmed and needed some space, when I didn’t reply he posted on his Snapchat story he’s wants to end his life and stopped replying for 5 hours, I called for a welfare check at his house and he said “that was so embarrassing why would you call the police” so I blocked him because that’s extremely manipulative then he’s messaging me on tik tok about him self harming because I won’t reply I blocked him on there too now he’s making text free accounts saying “why won’t you talk to me I don’t know what else to do” and I’m very disturbed by his actions and the fact he doesn’t think he’s being manipulative at all so I would love some feedback and advice on how to deal with this situation please