I mean, I get WHY there isn't one from a character and plot perspective. That all makes perfect sense, and as the story is written now there isn't really any space for a love story to blossom. However, as a Star Wars fan I consider love stories and romance to be a pretty core part of the experience. Even shitty ones like Anakin and Padme, it may not be GOOD but its there and part of the formula. The complete lack of it, from any perspective or gender, is one of those things that contribute to making the film feel overly sterile. The movie takes so many cues from the previous movies, both as a sequel and as a "soft reboot", that it's weird that one of the big plot points of the previous two trilogies got left out. Even Han and Leia's romance, which was an actual thing with kissing and tension and (presumed) sex gets boiled down to a hug and some meaningful looks. The only thing we get is a little bit of unrequited flirting from Finn that does more to establish him as comic relief than as any sort of a sexual character. It doesn't even need to be Rey/Finn, either, though that would be the most obvious. Just SOMETHING that doesn't feel like its going to end in a pat on the back.
That said, there are still two more movies to go (and a whole hell of a lot of spin-offs) and I am pretty damn certain it's going to happen eventually, one way or another. I just wish, from a personal place, that they'd started building it up a little sooner.