Premanand Maharaj Ji
Will leaving my spouse for someone else bring me happiness?
Your karma returns to you
The person who turns you against your husband and only uses you is not a life partner. The life partner is the one who took your hand in marriage. What you do comes back to you as the same karma.
The one who is merely using you is not a life partner. In time he will leave you just as you left your husband. Then what will your condition be? Think.