She is motivated by her desire to save Manni's life that she is willing to try to get the money and make it to him in time without any form of transportation other than her legs. This is the biggest obstacle in the movie. As shown in the first possible future, when she cannot reach Manni in time to prevent him from robbing the store and it is her love for him that causes her to help in the robbery, which resulted in her death.
In the second possibility, she overcomes the counterforce of her father, who appears to not even care for her, by robbing the bank he works at. She is able to get away with it at the time because the police don"t think that she is the thief when she exits the bank and she is able to walk away from it. The problem is that everyone in the bank knows who she is and the police would be able to get photos from her father and the security cameras. She knew this before committing the crime but her love for Manni is too strong.
Their love for each other is especially showcased in the scenes in which they die. By using mental subjectivity, the director allows us to see the last thoughts going though dying character's brain. They both see a conversation in bed in which the dying questions the others commitment to them. Then, the camera shows the bloody face of the dying as they realize that they are leaving their true love. Another way of looking at it is that the dying refuses to accept this fate and wills time to go back twenty minutes to see if there is a happier ending to their story and their love is shown in the final when Lola doesn"t even realize that she is still holding a plastic bag full of money until Manni points it out.
While looking at the implicit meaning to the film, which is that the slightest moment can change the rest of your life, is shown in all the possible ways the events can take place. One of the best examples of this is when Manni is robbing the store in the first alternate future.