The opera star, who broke down in tears during the opening night of her UK tour earlier this month, said she had become dependent on her "amazing" fans since breaking off her engagement in December.
"I've had so much support from fans over the past few weeks - everyone has been really amazing," she told the Daily Star Sunday. "I've had so many messages that have helped me. I don't think I could have got up on stage without that.
"I got through [my shows], that's the main thing. I actually really enjoyed it once I was up there. My fans have been so loyal which is so lovely.
"Being on stage is the happiest I've been in a long time. I hope everyone can see I still really enjoy performing."
Recent reports suggested that Jenkins and Jones parted ways over her "very demanding goals".
Other sources have claimed that the couple were never going to get married.
Watch Katherine Jenkins perform 'Time To Say Goodbye' below: