What is the rationale for relationships in this day and age?
Rationale for relationships? Hah, nice one! I don't know anyone that has gone into a relationship based on rationale. It is emotion that is the primary driver of the need for a relationship. Which is all good. Emotions gives life some colour. Life is more interesting with it.
Some rational justifications (in this day and age, or even historically) for a relationship could be: support to reach life goals more easily, emotional support, making use of legal advantages given to those in a relationship, help quiet the parents when they nag about you getting married. Hey, it's still a rational reason.
A solution as long as everyone plays the game. If society A has social based population collapse, and society B does not, Guess which social system wins?
Well, if you're going to make a competition out of it, we all lose.
We've become so used to socially and legal system inculcated misandry that as modern men adjust to their new underling status, they do need something to do with their time. So if it is gaming, don't turn it into a mental disorder.
Nothing wrong with gaming, as long as (like everything), it isn't taken to excess. When it impacts on your well-being, and the well-being of others around you, you've gone too far. You need to be able to tear yourself away. if you can't, you have a problem.
But I did find one site with advice for women on dealing with a gamer husband/boyfriend that amused. Hilarious - one of the tactics is a sex strike.
That site was not about dealing with gaming partners, but about dealing with extreme gaming addiction. Which is not hilarious, and is absolutely a problem. Any addiction is a problem.
Though I do agree. If you have to resort to withholding affection, it's a huge red flag that the relationship is completely dysfunctional, and possibly beyond repair. If there's no inclination from your partner to talk or try to resolve things, it's best to withdraw from the relationship entirely. That's tough though, especially when you have a lot invested into it. It's easy to say there's plenty of fish in the sea, but they're not your fish.