I think this is a sarcastic song, from the point of view of a woman who wants it to be understood that she is in love with him, but doesn't want to come out and say so. She wants her lover to say that he's in love with her, and is frustrated that his understanding of love is more nuanced and less unequivocal.
The rooms and doors in the first stanza are metaphorical – she's blaming him for staying in a separate "room" (or way of being), and of "closing the door" on their love.
When she sings "If anyone falls in love... somewhere in the back of your mind", the singer is sarcastically mocking her lover's words, remonstrating with him for being unable or unwilling to simply take it for granted that people fall in love. She wants him to see that she loves him (even if she won't say it), and is trying to pressure him to acknowledge that he already loves her.
In the end, she is basically saying that because he isn't saying/doing this, she won't fully let him into her heart ("So I'm never gonna see you... deep inside my heart").
I think this is a sarcastic song, from the point of view of a woman who wants it to be understood that she is in love with him, but doesn't want to come out and say so. She wants her lover to say that he's in love with her, and is frustrated that his understanding of love is more nuanced and less unequivocal.
The rooms and doors in the first stanza are metaphorical – she's blaming him for staying in a separate "room" (or way of being), and of "closing the door" on their love.
When she sings "If anyone falls in love... somewhere in the back of your mind", the singer is sarcastically mocking her lover's words, remonstrating with him for being unable or unwilling to simply take it for granted that people fall in love. She wants him to see that she loves him (even if she won't say it), and is trying to pressure him to acknowledge that he already loves her.
In the end, she is basically saying that because he isn't saying/doing this, she won't fully let him into her heart ("So I'm never gonna see you... deep inside my heart").