It is not hard to put a 90 elbow on the hose.
1. Cut off existing valve assembly with a razor knife.
2. Unscrew the existing straight 1/2" threaded adapter off the valve.
3. Buy a 90 degree PVC unthreaded on both ends adapter, and a 1/2"unthreaded on one end and threaded on the other from Lowe's or some other source, and some "All purpose PVC Cement" at the same time.
4. Glue the elbow into the threaded adapter. Then screw on the valve. Then, glue on the other adapter by pushing on the hose and let it set 24 hours.
5. Enjoy the new, leak proof hose.
A picture is easier to understand. See attached.