(Cover) - EN Showbiz - Jennifer Aniston thinks modern relationships are problematic because people have to make them up as they go along.

The actress has been viewed by many as unlucky in love following her divorce from Brad Pitt, but is now happy in her relationship with Justin Theroux. Jennifer believes people put too much pressure on themselves when it comes to romance, explaining part of the problem is that women have altered so much over the years.

"I think women's roles in marriage or relationships have definitely changed and that's why we're still searching for a new set of rules or expectations about what all our roles are in a relationship," she said. "The problem is that each couple has to make it up as they go along. You can't necessarily rely on what your parents said or did because you know that doesn't work."

Jennifer added the key is to find an accepting partner who will grow with you. She also thinks communication is vital, and worries too many couples never share their hopes and dreams, or their fears, with each other.

"You have to try to find a comfortable way of being with another person and hope you can evolve with that person over the years," she told British newspaper The Sun.

"It's easy to fall in love and just enjoy that euphoric sense you get from that. But as you get older you understand that a relationship is much more complex than that and you have to think a lot more about who you are and what you want as well as what your partner expects from you.

"But if you can have those kinds of conversations, you're already way ahead of the game." (C) Cover Media