恢复单身狗生活英文可以说是 "return to being a single dog" 或者 "revert to being a single dog." 这个说法源于"单身狗"（single dog）这个词，指的是没有伴侣的单身人士。例句如下：
After my divorce, I had to return to being a single dog for a while.
She's been in a relationship for so long, it'll be interesting to see how she adapts to reverting to being a single dog.
中文翻译如下：
离婚后，我不得不暂时恢复单身狗生活。
她谈恋爱已经很长时间了，很有趣看看她如何适应恢复单身狗生活。