It's inevitable that the person you love most will hurt you the most. The sensitiveness of being open to the person that you get involved and the emotional attachment, so when they say something that is negative or perceived being negative, it will definitely going to hurt a lot more than say the normal people out there whom you may have no much string attached.
This is because you give your heart and this makes you vulnerable. Despite the high intellectual ability to think rationally and the superior faculty of differentiating events with logical order, we are still unsure the depth of each others core sensitive trigger button. The dark side of us will take over to ruin the joy and happiness which are always readily available within us, all the time.
Out of sudden, happiness becomes sadness, joy into sorrow, love becomes hate and so on; the antagonistic feature bulldozes all the goodness.
Remain steadfast when this happens. Never allow the sensitive external mind to control you. When you're convinced, and somewhere in your heart corner says that you'd been trustworthy, loving, loyal, kept your promises pledged intact, the law of just cause will always precede, despite whatever words of negation being heard from the other side.
The gigantic "life video records" cannot be erased from both sides memory stores. Words can be moved through lips movement acted upon the external conceited mind, but the actual happenings have been done much earlier. What done cannot be undone.
Faith in God is the key attitude to withstand the inner mind turmoil when hurt. Remain true-to-self and don't fall into traps by having negative retaliation, be it in the mental or physical sphere. Time can heal. Give space and time to them.
Even to think or hurting those whom who have hurt us, should be strictly avoided at all cost.
Learn from experience to respect at one another. Gurudeva, Satguru Sivaya Subramuniya Swami have a wonderful remedy for hurt feelings. Protect emotion with color meditations and sending good thoughts and lights to those who had hurt us.
Pray more for them. Hope this will heal, slowly but surely.
Yes, I do agree it can be really frustrating and energy zapping on the person that being hurt.
Deep inside both souls, the one who receives and the one who inflict hurtful actions, love always shines. See this from the inner perspective and all will be well, with grace of God(s).
Hate Not, Love Yes. because when You love God, You will not hate others.