Summarize the following:
Think about your current state of mind and life circumstances and ask yourself if your romantic feelings might be caused by these factors. Sometimes life events can cause people to seek comfort, stability, excitement, or validation from other people in our lives who they don't genuinely want to be with. Avoid pursuing a relationship with your best friend if you might be using them to feel better. For instance, you may seek comfort and distraction in a romance with your best friend after a death in the family. Take things slowly in your new relationship so that you can both figure out your feelings without distractions. Romantic touching and sexual contact can blur the lines of a relationship and confuse boundaries. Try to let your physical relationship evolve naturally out of genuine chemistry and affection. Acting on physical urges too soon may make the situation awkward or increase the intensity of your relationship very quickly. Moving slowly is a good way of avoiding confusing hot-and-cold behaviour. Making a grand romantic move one week, then acting like a casual buddy the next will leave your friend unsure of your feelings. Take things slow and gradually build up to bigger gestures or commitments so you won't be overwhelmed by the situation. For instance, don't show up to your friend's workplace with flowers one day and introduce them to colleagues as your "buddy" a few days later. Taking things to the next level with your best friend can reinforce an already strong bond, making it tempting to spend all of your time with them. Take some time apart to pursue your own interests and to make sure that you get the chance to miss each other. This will make you appreciate each other even more while reducing the risk of becoming annoying to each other. For example, take time to visit with other friends or spend some quiet time alone at home.

Summary:
Make sure that your motivations are pure and not temporary. Avoid getting physically intimate until you are sure of your chemistry. Be consistent about your romantic advances to avoid confusion. Give each other space sometimes to avoid getting tired of each other.