February. The month of love. In that case, happy Valentine's day. So many great love stories come from great novels and scripts. Think about love struck Romeo and his love. Probably the greatest love story of all time. Yes, I have read the play. Nearly every single novel I read and every single movie I watched had "Love" in them. Perhaps it is because love it the one emotion that we all endure through life. Perhaps it is because people enjoy love, or perhaps it is because it is a feeling we all understand. Whether it be parental love or romantic love.
The main thing when weaving romantic tension between two characters is that it needs to be believable. I can't emphasize that enough. If it isn't believable the tension is simply not there and the reader won't care. Nearly every fantasy has a romance, whether it be a triangle or a classic weave, but it is the way that it is told in the back story that makes it "great." The way the characters interact and the way that descriptive words are used.
Another important aspect in weaving love into your novel is having like able characters. Both of them or three of them. Many stories are based highly on love despite having a different genre. So, who knows. Maybe your novel will be the next best love tale.