Disclaimer: I have been made to believe I'm a possessively paranoid lunatic in previous relationships. I never was one, but the mind-twisting went so deep that I still think I must be, iyswim.
Thing is, when you love somebody and they say they've got a vulnerability (real or even imagined), you try to help them with it don't you? Let's compare it to a mortal fear of spiders. If an arachnophobic OP posted that their partner was force-marching them to spider exhibitions, we'd all say the partner was cruel. Similarly if they sneaked spiders into the house and casually mentioned, several days later, there was a box of spiders in the wardrobe. We'd be saying she needs someone who respects her needs - not that she's got to get over it because, well, spiders happen.
There isn't much of an excuse for 'protecting' your partner by doing something they fear greatly, keeping it secret or drip-feeding. It basically means you're going to do what you damn well please and don't care how your partner feels about it. Your only concern about their feelings is whether those feelings are inconvenient for you.
FWIW, I even think this about pocket's sister. It's great that she's fixed this vulnerability now - much better for both of them - but, really, he'd have been kinder to gently explain that he'd bumped into Jenny and metaphorically hold his wife's hand while she went through the pain.
Glove, I hope you will find ways to explain this to your boyfriend and get the respectful care you deserve. Obviously I don't know how much cause you have for real concern here, but I feel your disquiet is justified.