It's about being in love with someone she knows deep inside is a player, but making herself deny it anyway. The moments where he says something sweet are precious to her, and she wants him to say them more, and for longer. She hopes one day he might say them enough and convince himself to fully commit his heart to her, and only her. The longer the relationship lasts, the harder and more bitter it would be to end, so it's easier to not let go, even though he's not a good man for her. The "things to fix" list part of it also seems to imply that she's just putting off confronting the problems of the relationship.
It's about being in love with someone she knows deep inside is a player, but making herself deny it anyway. The moments where he says something sweet are precious to her, and she wants him to say them more, and for longer. She hopes one day he might say them enough and convince himself to fully commit his heart to her, and only her. The longer the relationship lasts, the harder and more bitter it would be to end, so it's easier to not let go, even though he's not a good man for her. The "things to fix" list part of it also seems to imply that she's just putting off confronting the problems of the relationship.