Your feelings are completely justified, and frankly I'm angry just reading the stuff that your s/o has said to you in that regard. It seems that he's not taking it seriously ENOUGH.
It's a shame it takes until situations like this for ppl to reveal their ugly side... I can't speak to his character as a whole but his actions here are not okay. Stuff like "you're going to ruin our relationship" or "I feel like something's gonna come along that's too much for you to handle" sounds like he's shifting accountability from himself, and sounds boneheaded at best and manipulative at worst.
thanks for your response. It’s nice to have some support another friend also messaged me, so I am feeling a bit better. Yeah, I agree that those are pretty messed up things to say. Here’s hoping he’s just afraid on his own and not sure how to process it or something like that. I have struggled with anxiety and depression in my life, so those words aren’t from nowhere (me having been overwhelmed by life in the past and him supporting me through it). I don’t blame him for that worry (although I feel I have displayed persistence and support in the face of adversity and been there for him when he needs, I can never know how much more support he has felt he needed.. sorry if that was confusing. I mean to say that he’s felt let down by my anxiety in the past). Anyways I’m hoping to talk more with him and reach more of a conclusion today. Thanks for reaching out though, I feel sane now