Lately I've found that unless I've been interested in someone for a long time, and formed an emotional connection, I have trouble with being in relationships. My first bf (I'm bi and trans btw) and I were in the same grade and I had a crush on him for around 6 months before we started dating, and I had no problems (until he turned about to be a lying asshole, but yk). But since then, every relationship I've had, things will be okay for a bit, then I will get this weird feeling in my gut, like my emotional connection to the person I'm dating is fading. It's happening with my current partner at the moment, and even though I'm head over heels for this person, I can't shake this feeling. I just don't understand it, and I want it to go away. I just want a relationship where I don't feel emotionally detached from my partner. I have some pretty serious ptsd and other stuff going on that I know might have a contribution to this weirdness, but at the same time, I've been considering as to whether or not I might be demisexual, as all of the people I've dated, including my current partner, and I, have had romantic interest in each other for only a month or less before dating. Do I need to give myself time to get past what I'm feeling? Does anyone else have any idea what I'm talking about, or am I batshit crazy?