You’re going through withdrawal.
Then the next time he calls, you decide to ease the pain of missing him a little by answering. You don’t see the harm in getting a little taste of him to ease the suffering. He tells you all the right things that make you feel amazing again. He does his best to convince you that things will be different this time. You aren’t sure you believe him, but your feelings take over and you give in. You fall right back into the addiction.
You relapse.
You’re back together and things feel amazing again until they go right back to how bad they were before. Your family and friends warn you that it won’t last and they tell you that he isn’t good for you, but you don’t want to hear it. Deep down you probably even know they’re right, but it doesn’t matter to you. You start ruining relationships with the people closest to you because of your addiction. It hurts more to be without him than it does to be with him. No matter how badly you want to leave him, you can’t bear the thought of not being with him.