The song is definitely about making the decision to break up with someone you really love. He/She has 'two pence pieces in [his/her] hand', representing the 50/50 decision between breaking up with someone or not. He/She has to make this decision on their own and it's hard and heart wrenching - he/she knows the relationship has changed so much that in his/her head it seems the best decision - he/she just doesn't ever want to lose that loved one that shared a huge part of his/her life ('stay in touch...try not to think about me too much').
The song is definitely about making the decision to break up with someone you really love. He/She has 'two pence pieces in [his/her] hand', representing the 50/50 decision between breaking up with someone or not. He/She has to make this decision on their own and it's hard and heart wrenching - he/she knows the relationship has changed so much that in his/her head it seems the best decision - he/she just doesn't ever want to lose that loved one that shared a huge part of his/her life ('stay in touch...try not to think about me too much').