You know what @Former-Member ? I'm not a psych, but I feel like your brain is wired to seek evidence of you not being able to be loved, supported, cared for and then it happens, and you say "You see"? Each time it happens, it's a punch in the guts and confirms that you are unlovable and cannot go forward.
You CAN be loved. You CAN be cared for. You CAN be supported.
Please allow yourself say and tell yourself these words.
It's been too long that these unhelpful schemas are ruling your brain.
You are better than that!
Come on mate, tell yourself you CAN!
I'm sorry and apologise in advance if you feel this is pushy. I can remove it. But I genuinely care and feel there IS hope even if you don't feel it right now.