You have to understand that this desire for a romantic relationship you have is largely due to cultural brainwashing, which has brainwashed a whole generation to think dating and sexuality is the most important thing in the universe. Take an unbiased look at America's popular culture in books, advertisements, movies, etc. etc. 80-90% of it is based on sexuality and how great romantic/sexual relationships are. This is literally no different than Nazi germany where 80-90% of popular culture focused on how great Nazism was, or how in Stalinist Russia 80-90% of popular culture focused on how great Stalin and Communism was. People in America kill themselves because they don't have a girlfriend and people in Russia killed themselves because Stalin died. Same thing IMO. Had you grown up in Stalinist russia would you be making posts about how you never joined the communist party on elite fitness instead of your lack of female companionship? If you honestly just sit back and observe you can see alot of similiarities between western culture with sex and despotic cultures with idolatry for the leader. In america there are movies where people abandon their families for a girl and the movies are box office hits, in North Korea people sell out their family for Kim Jung Il and make the papers. Same thing really, just a result of constant reinforcement with no real counterpoint.
Romantic relationships are just one of many relationships. And they aren't that great really, at least not better than any other type of relationship. They have good sides and bad sides. I think people just have a romantic view of what they really are. They have good parts, but overall, meh.