Hey folks!
So drekir are social animals, though they don't form relationships and emotional bonds like humans do. The emphasis on drekir social units is generational and not genetic.
Drekir form den clans, which are generational "family" units that form from drekir who hatch and grow up together (within 3-5 years of eachother). Throughout their lives they will naturally grow a deep and powerful emotional bond.

But why don't drekir engage in marriage? or what about "romantic love?"
I see it fit to explain why that doesn't happen so here is some SFWish reproduction talk.

Drekir are a polygamous r selective species.
by polygamy i mean that drekir do not keep a long term spouse, drekir do not have an instinctive emotional bond with those they mate with and it is natural for drekir to bounce from mate to mate.
by r selective species they are more of a "quantity over quality" species, your average female will lay upwards of 8-12 eggs a year and does not have a maternal instinct to any of their own kids. A mother is not gonna be upset if you say, broke an egg she layed (probably mildly annoyed though). There is a sense of basic empathy but the mother is not going to love or even really keep track of her offspring. With the children it's the exact same, the kids that hatch from those eggs aren't going to emotionally bond nor care about their parents, it's just not emotionally important.

Lastly drekir don't carry an idea of "romantic love". Sexually speaking, when a drek seeks out a mate, it is not out of "love" or "romance". A drek seeks out mates and sex purely as a lustful and instinctive drive to reproduce. And a drek will generally mate with whoever suits their fancy in the moment, could be a denmate, could be a stranger, etc.

So drekir aren't well wired to marry and raise kids, that's now how they work. drekir do not form emotional bonds based on genetic family units like humans.

So they form Den Clans

A den clan forms from a group of drekir who grew up together in the same generation of eggs that were laid by all the preceding adult den clans around them and are practically never genetically related. All the drekir of a den clan are within 3-5 years of age and den clans number between 30-220 drekir.

A denclan serves a lot of important social and emotional roles in a dreks life

A dreks denmates are their closest companions, they emotionally bond with their denmates and to a drek, these are their closest and most trusted companions. A drek will often live and spend most of their lives with the drekir of their denclan, as a drek, these are the folks you would be living with, hanging out with, chatting with and socializing with. These are the people you would trust with your life and the people you would do anything for. Denclan bonds go very deep.
Also drekir see their fellow denmates as potential mates for the occasional fling, remember denmates are not genetically related. Though compared to the human family it's a bit weird. Drekir denmates tend to treat eachother in a "friends with benefits" type situation.

But while drekir don't have a human familial system, they have something that is close to an equivalent in the form of their generational den clans. It's not very human but it's where their closest emotional and social bonds exist. and denclans are the foundation of drekir society