Dream about killing significant other is an indication for feelings of guilt, eternal punishment and damnation. You are not reaching out to others enough. Someone is questioning your character and harming your reputation. This dream is unfortunately a warning signal for cleansing of past sins. Your subconscious is trying to make you aware of a solution to a problem.
Killing significant other dream is about an immature attitude, a playful nature and the mischievous side of your personality. Your character is under attack. There is something that you have ignored or neglected for too long. Your dream is sadly a warning alert for your emotional needs or appetite. You are feeling lonely, overshadowed and under-appreciated.
If you dreamt about killing significant other:
Someone’s harsh words will rub you the wrong way. Most likely, this person isn’t purposely being harsh; he or she is just spelling out the truth. Don’t let your over-sensitivity of the issue get in the way of your understanding the facts clearly.