1. Lack of communication
The less you communicate, the more you slowly learn to live without each other. The more you two take breaks from each other, the faster love dies.
2. Endless fights
Constant fighting will make you avoid each other for peace, thus drifting apart.
3. Lack of mutual activities
Yes, you, too, might be in different careers and have different likes. Still, the bond will fade if you don't have everyday activities to do together.
4. Affairs
Affairs distract, and love for each other withers.
5. Addictions
Addictions such as porn or alcohol take the best of our time, and we end up defending the addiction more than the relationship. We get too hooked on seeing how we neglect or hurt our partner.
6. Third parties
You might end up siding with third parties such as parents, friends or siblings to the point that they pull you away from your partner.
7. Lack of appreciation
The less appreciation there is, the more loving starts to feel like a strain; worst of all, when things are done not out of joy but obligation as a spouse.
8. Unforgiveness
Your heart cannot love and hold a grudge at the same time.
9. Distance
Physical distance, but most of all, emotional distance, can make two people fall out; try as much as possible to connect as a couple.
10. Work
When your work or business becomes too demanding, you might struggle to balance it, and your love life might suffer the consequences because it does not appear to have financial value.
11. Blame game
When you exchange blame and find fault in each other, you will begin to dislike each other's company.
12. Lack of effort
Love doesn't just happen or grow; it needs constant watering, nurturing and attention. It will gradually die if you don't put in the effort.