Eh, you get sick of them.
They're fun at first, but there's nothing like a constant parade of sluts to make you appreciate monogamy and actual love.
Although, perhaps the grass is just always greener on the other side ...

I never tired of sluts when I was young. Never. Actually thought pretty highly of them for the most part.
Monogomy is terrific too. Sluts are greatly appreciated while you search for that one terrific lasting relationship

As long as they're honest about it that is ...
it's never fun when a slut convinces you she's a keeper. ;)

Ah yes...I detect the underlying scars of an abused, broken heart who went crawling back, time after time. :D
You know what's worse? Lonliness. I'll take an abusing slutty two-timer instead of perpetual solitide any day. Well...not when you're married of course.

yeah, loneliness sucks.
But, there's church for that. God won't give you 30 minutes of happiness, but he will give you an eternity of it :)