for example, you are not rich you have a wife you love each other, but you don't have enough money, all your salary is only for your nutrition, taxes, accounts etc. your wife will live with you maybe 5 or maybe 10 years not more, because she will say hey honey I want to live not like that, I never dreamed to live like that. I love you but you need to understand that my love is not eternal. for example in this situation they love but they don't understand each other.