The secret to a long-lasting marriage is putting your partner first.
Be “other-centered ” rather than self-centred. Prioritise your partner's needs and feelings.
In successful marriages, other-centredness is reciprocal, not one-sided.
When a partner makes the effort to be "other-centred", the other partner will usually follow suit.
Source: Exploring the Strengths of Long Term Marriages among Malaysian Chinese Couples by Dr Teoh Gaik Kin.