I haven’t had my coffee yet, so sorry if it comes out garbled, but.
From where I am standing, it seems you’re feeling lonely and want company, but it has to be on your terms, in the sense that it has to match/fulfil your expectations/needs, or it won’t happen. And that’s not because you’re being a diva, it’s because you have a need for something and you’re trying to fix it with something else.
To heal yourself, to gain strength you/me/us need to reframe a bit.
I have exactly the same trauma as you do: I am afraid to be refused, it stems from childhood. It just makes me crumble inside.
To give you an example, the inner tube on my bike went. My exP, who was meant to love and help me, begrudgingly agreed to change it, but managed to have a few childish digs (why do I have to, I’ll do it later etc). I’m in my mid 40s, I can google, I can shove the bike in the back of the car to have it fixed, I could have sorted it myself. But I didn’t, I wanted him to make my life easier and show me he loves me. So I didn’t do it myself, but I showed I’m hurt and eventually he did, it took him 5 minutes.
The background story to this is: I am incredibly independent. He was hurt previously when I said I don’t need him, I want to be with him just because, not for all the help he can give me. He said he was feeling redundant, so I had to learn to rely on him, like in any normal loving relationship, show my vulnerabilities and ask for help.
When he played cat and mouse and procrastinated for days, my guards went up. Automatic reaction, I’ve been down that path before, my parents have done the same thing all their lives. It is incredibly hurtful. I did what became and instinct to me: I steeled. I’m very good at it.
But then I stopped and thought about it. He is not my parents, there’s a new dilemma, have I chosen, again, a partner like my father? Is it normal to expect help from your partner?
I explained to him: look, it’s childhood trauma, I trust you, I am showing vulnerability, help me heal, help me get to that point where you refusing to help is not personal, where my first thought isn’t: you’re under attack, but: he has other things he wants to do, he normally helps, this time is on me to have it fixed.
Basically, work on what triggers you.
HTH, hugs.