It's about liking a girl a lot, and you are unsure if she likes you back so you are scared to ask her out, and you end up feeling sad. "You can't put your arms around a memory" could refer to the person saying he wants more than 1 memory of the girl, he wants to put his arms around her, not just a memory of her.
It's about liking a girl a lot, and you are unsure if she likes you back so you are scared to ask her out, and you end up feeling sad. "You can't put your arms around a memory" could refer to the person saying he wants more than 1 memory of the girl, he wants to put his arms around her, not just a memory of her.