Alex Foster’s answer covers most of what I wanted to say, but I’ll also note that thinking in this way...
On the flip side, being in a relationship might help cut costs enabling more donating and could increase happiness to have an indirect effect on productivity?
...is unlikely to be conducive to a successful romantic relationship, unless this thinking is secondary to thoughts like “I really like this person, they make me happy, and I also want them to be happy”.
(There’s a word for a relationship you form to cut costs, and the word is “roommate”. There’s a word for a relationship you form to increase happiness, and the word is “friend”. As a bonus, it’s easier to have multiple roommates or friends than it is to have multiple romantic partners.)
Alex Foster’s answer covers most of what I wanted to say, but I’ll also note that thinking in this way...
...is unlikely to be conducive to a successful romantic relationship, unless this thinking is secondary to thoughts like “I really like this person, they make me happy, and I also want them to be happy”.
(There’s a word for a relationship you form to cut costs, and the word is “roommate”. There’s a word for a relationship you form to increase happiness, and the word is “friend”. As a bonus, it’s easier to have multiple roommates or friends than it is to have multiple romantic partners.)