Jake Gyllenhaal has struggled to find ''the one''.

The Hollywood hunk - who's previously dated the likes of Taylor Swift and Kirsten Dunst, and is currently said to be romancing his 'Southpaw' co-star Rachel McAdams - admitted he's found it hard to find a woman with whom he can share his life.

The 34-year-old actor: ''It's hard to find the right person and also to be ready to have a serious relationship when you do meet someone you know you would like to spend a lot of time with and get to know more deeply.

''Nothing gets me more excited than thinking about being a husband and a father one day. There is no purpose I can see more important than that. I'm so close with my two nieces. I'd do anything for them. I'd give my life for them.''

Meanwhile, Jake admitted he takes inspiration from his actress sister Maggie Gyllenhaal, who is happy with her husband Peter Sarsgaard and their daughters Romana, nine, and Gloria, three.

He told the Daily Mirror newspaper: ''I look at my sister and see how happy she is now and enjoying her family and I would like to have the same thing one day in my life.''