Obsessive guy 😳

So this guy I’ve been knowing for a week wants to hang out every single day and on the 3rd day he said he was in love with me the first day he met me and I was like uhhhh wtf honestly a turn off that’s too fast and when I told him like a few days ago I didn’t wanna see him again he started cutting himself but then I checked up on him and I started hanging out with him again but honestly I get bad vibes and a gut feeling to just block him out of my life

Should I run?

I just don’t want to be mean or trigger him 😳

Also does this sound obsessive or unhealthy for me?