After Killing His Wife to Prove His Dao, Her Husband Regretted It

A hundred years after I took human form, I met someone.

He confessed his feelings for me, and I happily accepted.

I knew he only wanted to use me to survive his tribulation, yet I still handed him my vital weakness.

Sure enough, he did not disappoint me: he killed his wife to prove his Dao.

Unfortunately, he lacked the resolve to see it through, and eventually came to regret it...