If you're made redundant, loss of income is the most obvious difficulty, but being without a job can also affect your self-esteem and self-confidence.
For some couples, existing problems are made worse because of the additional pressure they're feeling. For others, coping with a new situation can lead to tension.
Denise says financial difficulties can make people blame each other for their situation. She says, for example: "A wife may tell her husband he has no right to go out drinking with his mates if it means their child has to go without a new pair of shoes."
For some couples, having less money means that they can no longer deal with problems the way they used to.
"It may be that in the past they bought their way out of a problem with a holiday or a present. If that money's not available, they have to develop new ways of coping," says Denise.
Any stressful situation can also have an impact on your sex life: "A lot of people avoid intimacy when they feel under pressure."
How to ease the strain money puts on your relationship
There are many things you can do to improve your relationship, and lots of places you can go to for help and support.
Getting financial advice can ease your worries
Deal with the practical side first. Talk to your mortgage lender and bank if you're concerned about meeting payments or going over your overdraft limit.
Get advice on paying off your debts, find out what benefits you may be entitled to, and work out a plan to search for jobs.
"People who've never been in this situation before may feel embarrassed," says Denise.
"Don't be. The people who work as advisers are there to help. If you don't want to talk about your problems in person, use telephone helplines and look at the information that's available on the internet."
There are many organisations that can help. The Citizens Advice website has information on benefits, how to deal with debt, what you're entitled to if you're made redundant, and who to turn to if you lose your home.
Other useful organisations offering advice on debt include:
- Money Advice Service - phone 0300 500 5000
- National Debtline - phone 0808 808 4000
- StepChange Debt Charity - phone 0800 138 1111
Be open with each other about money
Talk to your partner about your worries. Excluding them can cause resentment. Discuss the issues and try to work out a way you can deal with them together.
For example, you may need to see a financial adviser together, or agree on a budget for your weekly spending.
It's also useful to talk to friends. "Men are more likely to keep problems to themselves and become isolated," says Denise.
"Women are more likely to unburden themselves to girlfriends. Although talking to friends won't fix the problem, it will help you feel a bit better because you're not bottling it all up."
Talk about your losses
Discuss how losing your job or having less money is affecting you as individuals and as a couple.
Look at where you spent money on having fun together and think of ways you can do things together without spending money, such as going for a walk or cooking a nice meal at home.
Appreciate the little things in your relationship
Think about small gestures you can make, such as running a bath for your partner or making them a cup of tea. These little things can help you feel closer.
Any stressful situation can affect your sex life. "Low self-esteem can be an issue as well," says Denise.
"Sometimes people who are made redundant feel their performance has been criticised, and this can cause problems.
"Don't stop cuddling, stroking each other and kissing each other. You can still maintain an intimate and sensual relationship."
Further relationship help
If you don't feel you can work things out on your own, there are people who can help and support you.
Talking to a professional therapist could help - your GP can advise you on psychological therapy services in your area.
Find more information about Relate's relationship counselling services.
Article provided by NHS Choices