So it sucks when you're lonely and insecure. It's not always going to be perfect when you're torn between being content with your singlehood or going downstairs and confront him. She needs to change things on her end and truly recognize, consciously and subconsciously, why she's still single. Her relationship is over, and it's hard that he's living underneath her. But all that's doing is preventing her from giving someone new a fair shot. Accept the fact that there's a reason things ended - she let him get away, and did't even bother dating anyone else. Nothing's ever going to happen for her if all she does is think about the ex. Keeping the ex around as a friend isn't normal. So many I know get into a serious relationship, and realize being close friends with your ex is just weird. Diana makes her fear of commitment ruin her chance at falling in love. Bad gut feelings lead to fear. They're not the same. Gut feelings are meant to be followed, and fear is meant to be conquered. While Ben moves on with a new girlfriend, Diana can't enter a real adult relationship because of confusing fear for a feeling that things won't work out. She'll never know the answer unless she takes the plunge. Eventually she realizes nothing has really worked out for her in getting over Ben, but instead of believing nothing will work out in the future she puts up a guard and sees only possible red flags. And I'm glad the film didn't end up as many Lifetime movies and they fall into each other's arms. She grows some common sense, tosses away all those fears and opens up to a potentially great relationship with Ben and opens up to a potentially great relationship.