狗狗沉迷于爱抚的原因，复杂而多样，其中不乏社会需求与之紧密相连。作为群居动物，它们天生需要与人类以及其他犬类建立起纽带，以此来构建一个庞大的社交网络。在这个过程中，触摸成为了桥梁，它不仅能够加深主人与宠物之间的情感联系，还能促进它们在社交互动中的技巧提升。

身体接触同样是狗狗喜爱被爱抚的重要因素之一。这种亲密接触对于它们来说是一种极大的舒适和安全感的来源。轻柔地抚摸或摩挲它们耳朵、背部乃至腹部，这些都是让它们感到愉悦和快乐的方式。这份温暖，让他们的心灵得到了慰藉，让他们在拥抱般的手势中找到归属。

情感需求则是更为微妙的一环。狗狗对主人的依恋远非表面的，它们渴望通过触摸传达出自己的情感，也期望从主人那里获得回应。这便解释了为什么当我们用心去触碰我们的宠物时，他们会表现出明显的满足和幸福——因为这正好满足了它们的情感需求，使得彼此间的情感纽带更加牢固。

综上所述，dog love to be petted for a multitude of reasons, all intertwined with their social, physical and emotional needs. Touch serves as a bridge that not only strengthens the bond between humans and dogs but also enhances their social skills in interactions. Physical contact brings them comfort and security, while emotional connection allows them to express and fulfill their affectionate needs. In essence, dog's fondness for being petted is an intricate dance of meeting multiple requirements that ultimately enriches the relationship between pets and their owners.