Speaking from personal experience, finding the right relationship can be HARD. I recently came across a rational take on finding relationship partners, much of which really resonated with my experiences:
http://waitbutwhy.com/2014/02/pick-life-partner.html
http://waitbutwhy.com/2014/02/pick-life-partner-part-2.html
(I'm still working my way through the Sequences, and lw has more than eight thousand articles with "relationship" in them. I'm not promising the linked articles include unique information)
So? Alcohol is (or was) also a superstimulus. It's just that some human populations have been exposed to it long enough to become adapted to it. Specifically adapting to it by finding it less stimulating.
An example of something not a technology that people get addicted to.
Alcohol is not inherently bad - like say cyanide (or a bomb) might be considered bad because it's primary purpose causes death; it's the nature of people to use it badly. And principally - many people use alcohol (and videogames) without getting addicted to it, and lead a fully functional life while partaking in a bit of alcohol (or videogames).