Too busy for anyone

Savannah • I'm an equestrian and a thespian
So, I have been told by 2 people who were breaking up with me that I was "too busy" for them. One was last year when my girlfriend broke up with me and she said she couldn't handle how busy I was. I just got dumped yesterday, and he said that I was too busy. 
I know I can be busy because I'm a competive horse back rider and I travel for that (my job and life) but I didn't know that it was such a problem. What should I do? This is my life, but apparently no one can keep up.