Rad Link 5 posted...
Because relationships shouldn't be viewed in a utilitarian way? Why is a relationship a waste of time if it never gets serious?
After a handful of dates, I tend to like the person, so I wouldn't want to be invested with someone I like when it won't work out. It's harmful emotionally. Once you've figured that out, repeating the 'mistake' is a waste of time. When you don't know any better, it sucks but that's just part of growing up.
...and if you don't like the person, then the relationship pretty much just is utilitarian.
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Donny: Are they gonna hurt us, Walter?
Walter: No, Donny. These men are cowards.