While I appreciate that finding a partner in life is very important, I don't know if it really falls under the umbrella of "developer life hack".
More to the point (at least in my case) is to ensure that your priorities remain ordered correctly. Basically, ensure that you spend sufficient time with family, friends or others, and make time for hobbies that don't involve code. Time management is important in this regard... committed to providing 8 hours a day? Stick strictly to that. Your own personal project? Define a time restriction on the hours spent on that project, and keep strictly to it. You soon realize how much time those distractions during the day take up. By reducing those, your productivity increases. But importantly, relationships become stronger and those hobbies help expand your mind. Both are extremely beneficial to you and your growth as a developer...
Meeting women is a bit like doing sales. it's more of an outgoing activity and being extrovert. So rather the contrary of coding. This is refreshing, gives me balance and a nice change to my day to day life as a coder.
[1] For the sake of verbal simplicity, I use the term 'women' for people of the opposite gender or the gender you are into. And also for the sake of simplicity and decency, I use 'meet' for all kind of interactions.