What's there to gain from romantic relationships, aside from sexual

What's there to gain from romantic relationships, aside from sexual gratification? For it seems as though there is more pain and loss from attempting to find our ideal significant other, than there is actual gain from finding someone adequate enough to fulfill such an unobtainable goal. It seems more worthwhile to culminate our own happiness within ourselves, than to put our happiness at risk, especially given that females (and people in general) who are interested in philosophy seem to be on the decline; and interest in philosophy is a must for any viable partner!

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