You are not likely to overcommit yourself or spend too much money or effort on a relationship that will not pay off emotionally .

你不太可能为一段得不到感情回报的关系过度承诺自己或花费太多的金钱或努力。

If we chronically overcommit , our sagging spirit inside may well become obvious to everyone .

如果我们长期承诺过多，我们内心松懈的精神就会显而易见。