Getting over an ex

Do you think that if you keep talking to someone you hurt its harder to get over the guilt ? Like if you had a boyfriend and you lost his trust & now feel you really bad about what you did, but now he forgives you and is willing to start talking again. But everytime you guys talk you're reminded of what you did & it makes you feel like worst person on earth. Do you guys think that if i were to just cut it off it would be easier to get over the guilt ?