Let me start by stating something obvious, a relationship isn't always beneficial. It can be, but it can also be a net negative. Thinking relationships in general is a good thing is a mistake, one that seems very common. Plenty of people out there who have a need to be with someone, to the point they'll compromise a lot just for the sake of not being alone. Obviously this negatively impacts judgement and rather than choose someone good will take almost whoever will have them. More often than not it's a bad option.
A beneficial relationship starts with making a wise choice in who to be in a relationship with.
Some guys think getting a girlfriend in the first place is the hard part, but they still have a lot to learn when or if they actually get one. The hard part is finding someone who's right for you and where you happen to be right for her. Picking the wrong girl can easily lead to a situation that's way worse than being single.
If that match is found then there might be a foundation for a mutually beneficial relationship. I personally wouldn't have bothered if I had it better on my own and I had it pretty damn good on my own before I met my wife.
The benefits of a good relationship to me is most of all intimacy and companionship. I appreciate depth and what I have with her is not something I have with anyone else or could be easily had with anyone else, it takes time and trust to get there. Sex is important of course, but it's part of intimacy so obviously if sex stops then that's a big hit to one the primary benefits of a good relationship. If I just wanted the sex part of it I wouldn't bother with a relationship though, superficial sex is easy to get.
You might think you can fulfill companionship with friends, I think you can get close, but it's not quite the same or as good as with someone more intimate.
The game never stops, being in a relationship is red pill on hard mode.
This one is funny to me. I used to see it as a game, as in I'm not like that and will have to pretend, play the game so to speak. I "improved my game" until I realized I can't keep up a facade indefinitely and I would HATE living that way for a woman or literally anyone. I went the complete opposite way, this is me, here I am, take it or fvcking leave it. It happened right as my attitude shifted from "I have to do X, Y and Z to get women" to "I'd rather die alone than sell my soul for some pvssy".
That's when "game" became irrelevant to me, besides, blatant honesty works a whole lot better than game ever did. I'd rather risk making some women hate my guts than to give up on who I truly am.
I wasn't gaming when I met my wife, in fact I wasn't trying to get her or anyone for that matter at all. I was just being myself completely unfiltered and she fell for that, I was the one giving her a chance. The only "game" going on was determining whether her presence was a positive or a negative compared to being alone, which as I said was already very positive for me and I certainly wouldn't allow a woman to ruin that. The reason I'm still with her almost 10 years later now is that her presence in my life has stayed a net positive.
Being with her is not hard, it's not a game, I didn't pretend when I attracted her and I don't have to pretend to keep her. She fell for who I truly am and stays for who I truly am. Being myself doesn't require extra effort, so being with her is easy.
Had I played games to attract her I would have had to continue playing games to keep her, if not she'd see that I'm not who she signed up for and understandably feel deceived. Constantly lying is a fvcking tiresome way to live and it's also the ultimate disrespect towards oneself, the one you're fooling the most in the end would be yourself. It's like constantly affirming to yourself through action that "I'm not good enough as I am, so I have to pretend I am someone I'm not". Obviously it doesn't do wonders for self-esteem...
So yeah, fvck game, double down on being yourself. It's better to just have the wrong types of people hate you than to have everyone, including yourself, dislike you for your dishonesty.