No. There is no correlation between liking cats and having BPD. I definitely have BPD and I definitely f*cking hate cats. I'm partially bitter about my ex-roommate's a$$hole cat who peed on my clothes, ruined my sheets and mattress, and continuously tried to knock my $#%^ over (I lived in a living room space so no door to protect from the vile creature). I hate fickle people and therefore I hate fickle animals. If I become attached to something, I want it to love me and need me. Cat's aren't really the best option for that role.
I'm definitely a dog person though. I have 2 tiny demon puppies who bark at and try to bite almost everyone else but love me and my family. Sure, sometimes they're like "you didn't give me food so f*ck you" but they pretty consistently want to cuddle with me and show affection.
I did appreciate your explanation of all the ensuing troubles of cat ownership. Ticks are gross but they attach to people just as readily as animals and it's more likely that you just don't notice them and they get full and drop off without any realization. Not to feed your paranoia or anything. But Lyme Disease is no joke so be careful. Your cat is likely to give you Toxoplasmosis though, so that's a fun parasite that comes with cat ownership. Helminths (worms) are cool. It'd be pretty awesome, just not for your cat. I don't think it would kill it though.
Pets die. It's the reality of having a pet. I will cry my eyes out when my dogs die. One of my darling monster puppies was diagnosed with bone cancer just a few weeks ago and we are waiting for her to get to the point where her days are more bad than good and we need to put her to sleep. Yeah, it sucks but most people put their lives in danger by driving every day so there's also a decent chance of humans we become close to kickin' the bucket too.
Oh and as an ex-sex worker, the law rarely comes into play where prostitution is concerned, unless it also involves children, trafficking, or drugs, and it's not illegal to cry on some titties. I'm pretty sure you could also find a nice girl at a bar to let you cry on hers. Women let men ejaculate on their boobs and f*ck their boobs, so crying sounds really pretty benign in the scheme of things that can be done to boobs.