You never thought you would find a girlfriend, so when the first girl took an interest in you came along you agreed to do anything for her. Now you are seeing what she really meant by anything.
Always wondering what it would be like to be a woman, you didn't believe what the packaging on the dildo said, but you decided to try anyway, after all, what harm would it cause?
You always thought you had problems with being insensitive down there, however, it would appear you just jerked off too much and lost sensitivity, 2 months in chastity fixed that.