The five of cups is a card that shows mourning as the image on it might suggest, but it is a petty kind of mourning that should not actually be happening. A closer inspection of the image on the card shows that the man is mourning because his cups have spilled. Only three of his cups have spilled over and he still has two that are perfectly fine, but he can only focus on what he has lost, and not what he now has. The five of cups is a card which implies that the subject of the reading is spending too much time focusing on past and small events and should rather focus on the future.
Seeing the five of cups on an area on the spread that is indicative of relationships shows that the subject cannot let go of something that happened in the past. This card is usually seen here in a situation where their lover has told them a harmful secret that they had been keeping for a long time. This could be something like a secret about who they had dated before they started to date you. It could also be a secret that is related to something that they told you about your relationship in the past, or even a lie that they have revealed to you. What this card shows is not to get too hung up on things like this. They eventually told you the secret and the lie so it shows that they definitely love you and respect your opinion. Let them know that you still care about them, and do not be bothered by something so small.
If this card appears in the area of a spread that deals with money, then let this be a sign that there is something on your mind that you have not gotten off your chest. Hat this probably directly relates to is the feeling of buyer's remorse. The second you decided to buy that fancy new dishwasher, all you could think about was how much you spent in order to get it. Stop worrying so much about what has already come to pass. It will do you no good. Now is the chance to focus on the positive aspects of your new prize, and the reason that you spent the money to get it in the first place. This will help you appreciate what you have a little bit more.
Seeing this card where you would normally see your fortune regarding your career probably means you are dwelling too much on some past mistake that you've made. In all likelihood, unless it is being brought up to you on a daily basis, everyone else has forgotten it. It could have cost you a promotion or even a raise, but don't let it get you down too badly. You need to be able to focus on the future and what you can do to make up for it instead of what you should have done.
Seeing this card in the health and happiness section of the tarot spread means that the things in the past which have made you sad are coming back to haunt you. Don't let them win. Now is the time to show that you can be a future minded individual that does not have to bend to the will of your past demons. You are in control of your destiny, so feel the way that you want.