There exists all types of relationships. There are platonic ones and romantic ones, and maybe some in between. Then there are familial relationships and others born out of obligation.
Some people maintain many relationships, and some people keep fewer than they can count with their fingers. Some keep only familial ones, and some have cut them off, like a gangrenous appendage.
I've met many people in my life. There are those who throw themselves wholeheartedly into every relationship they enter and end up disappointed when the majority of those people don't reciprocate. Then there are those who build relationships following from the discovery of shared values and cleave them as soon as those values diverge. I also know those for whom friendships count as a numbers game and serve as a space to project their personal values. Further, some keep relationships by a thread, held together by obligation but fostering zero respect for one another.
Relationships are a two-way street, I always like to think, whose roads must regularly be paved. There may be roadblocks or maybe the roads are weathered down from years of disuse, but if I'm going to be travelling a road in my life, I'd much rather it be a smooth and easy road, rather than a dangerous traverse.