How much sun do you have it in. I grow in intensely hot Central texas , so I give it some afternoon shade in the summer. What Zone are you in and are your winters wet? These are questions if you are growing it in the ground. IT also might be getting ready to flower. They stretch out at that point. Usually that happens latter in the summer, if it is going to flower. It looks like it tried to flower but maybe something ate its growth point and it branched near the top. It is hard for me to make heads or tails of this plant. It seems to be confused. I might be tempted to cut off the top part and root it and then cut the bottom part back to two or three segments above the ground, so it will push out new pups at its base .