A good percentage of marriages don’t last until “death do us part,” but most people getting ready to say “I do” still expect to be one of couples who make it.

Sometimes there’s no way to stave off the inevitable, but if you’re yet to be married and looking for ways to head off trouble at the pass, here are 6 things that consistently spell disaster.

6. Lack of Communication

From big disagreements, like how to raise kids, to smaller things like who is supposed to take out the trash every week, living together day in and day out for years results in all kinds of friction.

If you don’t talk about it, resentment could grow and fester and eventually cause an irreparable rift.

According to a study published in the Journal of Consulting and Clinical Psychology, couples who choose to avoid conflict instead of communicating are doomed to failure.

5. Social Media

Social media has impacted society in any number of ways, and a recent study out of the University of Hawaii at Hilo and the University of Missouri found that their impact on marriages is usually detrimental.

This is especially true in new relationships (less than three years old), and researcher Russell Clayton said this about their findings:

“Previous research has shown that the more a person in a romantic relationship uses Facebook, the more likely they are to monitor their partner’s Facebook activity more stringently, which can lead to feelings of jealousy.”

4. Control Issues

Abuse and controlling behavior are far more common that we would like to believe, and whether it’s physical, verbal, or emotional, situations tend to escalate after marriage.

Everyone should be on alert for red flags and, most importantly, be willing to listen to family and friends who claim they’ve spotted some for you.

This is a scenario where it’s better to get out immediately than wait a single day, because things will only get worse the longer you stay.

3. Financial Disagreements

Money is one of the top stressors in lives and in marriages, and if you and your partner don’t have similar spending habits (or can’t seem to get out of debt) there’s often trouble brewing.

Seth Meyers, Psy.D. says there’s no way to know for sure whether your spouse-to-be could end up ruining your credit, but there are some patterns that could help.

First, if your potential mate makes good money but still has credit card debt, you should ask some questions.

Another is spending a ton of money on an expensive car but not investing in more stable purchases like a home or condo.

Talking about money before tying the knot isn’t fun, but it makes good sense all the way around.

2. An Identity Crisis

People change and grow as they age. We face obstacles in life, we have epiphanies, we meet people who force us out of our comfort zones… and those things can see us growing away from your partner.

According to at least one divorce lawyer, Mark Harper, these events can also come part and parcel with affairs (which almost always tend to end marriages) – and that it’s almost always men who have a change of heart.

There’s no way to stop people from evolving, so the sad truth here is that it just might be time to let go.

1. Intimacy Issues

Relationships and marriages aren’t all about sex but for most people, it’s at least a part of the puzzle that keeps everything from falling apart.

According to Dr. Schwartz with Mental Health.net, one or both parties feeling unsatisfied physically can be a recipe for disaster.

Keep an eye out for red flags, and don’t rush into anything if you have any misgivings.

Like with most things in life, marriages are a lot easier to get into that out of, so take your time.