An ex is back! If you feel more romantic about them than ever, keep your distance.
An ex is back on the scene, and you might feel your heart singing a familiar tune. Be careful -- even if you feel more romantic about them than you ever did before, it could be hope or idealism that is guiding your feelings. Give yourself time to get used to them being back on the scene, and do not make any attempt to spend more time with them in a planned way. If you see them again, you see them again. Don't try to steer this thing -- it won't go where you want it to.