The 24-year-old Born This Way singer, who is dating boyfriend Luc Carl, told OK! Magazine that her music career always comes first.
She said: 'I'd never let any man come before my career. I guess there's some fear inside of me, which makes me this way.
'My music is never going to roll over in bed one morning and tell me that it doesn't love me anymore. I have a big problem with rejection.'
She added: 'Women have to make decisions and it's the toughest thing ever. Is it a man or is it a career? I was with a man once who couldn't understand that other things could come first.
'I tried not to let them, but then I was just unhappy. I had to break away. I know I run the risk of being alone forever, but it's the price I'll have to pay.'