Many things can make people lose faith without knowing it.
If you are the type that only calls on Allah during difficulty, you may likely forget to exercise patience when the trial strikes you.
If you are the one who loves Dunyah more than Deen, you may likely start to lose your faith when you are put to the test.
If you are the one who is always ungrateful, and not contented, you may lose your faith when the fortunes are taken away from you.
If you are the one who never thanks Allah for peace and harmony in your marriage, you may tend to lose your faith when marital conflict surfaces.
If you are the one who loves people more than Allah and His prophet, you may lose your faith when something happens to them.
If you are the type who put people before Allah, Yes, you may lose your faith when they turn their back on you.
So, be grateful at all times.
Umm Sumayyah Mai