I just did this, was offered a salary paid higher with better perks and benefits, I gave my notice and was immediately told “well you know I will pay you more right” as in he wanted me to tell him how much I should make. Do not take the counter, the relationship is damaged and not repairable until you and your current soon to be ex employer has time to come down from you leaving for a better offer, once they have time to realize your value and see benefit to having you there, however long that takes.