Abortion is rarely an easy choice for women, even when they feel strongly that it is the right choice. It makes sense that you are emotional. Your hormones are adjusting to a pregnancy. You aren’t feeling adequately supported by your partner. Further, just because you believe you are doing the right thing doesn’t mean that you don’t have a right to grieve.
It may be that your boyfriend has difficulty with his own feelings and is therefore avoiding dealing with yours. Or he may be so self-involved that he can’t set aside his own desires and activities to be supportive. It’s certainly worth it to have a conversation to try to figure that out. If he is unwilling or unable to have a serious conversation about it, I suggest you give up on trying to engage him about the abortion. Instead, look to your friends or sympathetic older relatives to give you the support and love you deserve. If you don’t have anyone in your support network you can turn to, then please find a therapist to help see you through this difficult time.
I doubt very much you will entirely return to the “old you” in the wake of this experience. That doesn’t have to be a negative. You may find yourself deepened in an important way. If your boyfriend can’t or won’t step up and truly be with you, it’s instructive. Only you can decide if you want to be in a relationship in which you will feel alone during the inevitable tough times that happen in life.
I wish you well.