Some people, like both my parents, aren't really the "loveable" types, and i also have that (might be combo of hereditary & upbringing). Same with a sibling of mine. I think my family's genetics makes us very practical-focussed, & we "steer clear" of anything REMOTELY "personal" .. which :. means no deep/close/trusting bonds have ever been developed. We're all "friendly" enough to each other, but there's this "aloofness" or "distance". And for me its probably the worst, as due to being oversensitive & negative, i have had many, many negative interactions with my mother expecially.
And illnesses, mum's had cancer, and dad's had a potentially life-threatening medical situation. But i never really seemed to be that bothered about it (at the time). If the worst did happen (you know), then it would probably be YEARS before i felt much of a sense of "missing" them.
And i've probably never been happy about their very minimnal showing of affection/etc - i've missed-out on all of that stuff, such that now i think i'm chronically "affection-starved" & am constantly seeking comfort in my various additions & OCPD ways (to try to unsucessfully "fill that hole").
The sad fact is, due to genetics, some mothers don't have much of the "mothering instinct" (as with mine), and as such are primarily focussed on their own selves/lives, neglecting the emotional needs of their children. And we all know what that does to them....