Was I being unreasonable here?

I added this guy I knew in primary school / secondary school and I might've talked to him in college. I've been ill for 10 years (am better now) but the last time i went out with friends was in 2013. Been talking since late April daily over messenger, he recognises me too. we've played online games, exchanged photos, video, had many convos and he can get flirty sometimes. i told my mum im going to the shop she said "dont you dare get meeting that man, if i find out there will be trouble". i wanted to go to the cinema with him next month. my mum was like "he might be a m"rderer, r!pist etc" and came up with all kinds of scenarios like "what if he kidnaps you and sells you? you don't know him" and i got frustrated and said "and what if i end up getting so depressed from being lonely I end up k!lling myself?" she got really upset by that saying im evil because my bro tried doing it last year. I was trying to say i need friends because im starting to get depressed from being lonely and i get there's bad people out there but shes obsessed with true crime podcasts/docs and thinks most people are evil.

she said "i wish i never had you" and "i will never forget you said that what did i do to deserve that"


I'm 32 btw. she's got cancer and isn't well herself. She's autistic and took my hypothetical in response to the scenarios literally and took it as a threat or "blackmail".

he lives a 5 minutes walk away.