Grief is difficult, and people handle it differently. It might help you to talk or write about your feelings, or to join a grief support group. You need to handle it at your own pace and not make any sort of permanent decisions for many months--probably at least a year. Realize that your grandfather and aunt are also grieving. He probably as deeply as you.
If you truly believe that your aunt was merely trying to mediate or communicate between the two of you, next time tell her that she needs to speak only for herself, not for your grandfather. If he has something to say, he needs to say it directly to you. And you also need to tell them both that the things they have said to you while you are in deep mourning and grief for the loss of your mother is excrutiatingly painful. Try to put it in terms where they are the victim and ask how it would make them feel. "Grandpa, if I had come to you when you lost Grandma, and demanded that you give me everything that was hers, how would it make you feel?"
Many people of many faiths have strong religious beliefs about how the body is handled after death, and despite your mother's wishes, he may view cremation as precluding her going to heaven or salvation or ..., so you need to be sensitive to that when you discuss it with him. If/when the subject comes up, ask him WHY he is so adamant about her being buried versus cremated; you can then address his real concern, or put it in perspective for him. Be sure to mention that cremation is what SHE wanted and requested and planned, and that her husband and all her children are in agreement on that. You also need to get your Dad and brothers involved in supporting you. If she left a will or had a living will or living trust many things should be spelled out in them. If she did not, each state has slightly different laws on inheritance and who is considered next of kin. For adults, generally it is the spouse, followed by children.
HUGS
If you truly believe that your aunt was merely trying to mediate or communicate between the two of you, next time tell her that she needs to speak only for herself, not for your grandfather. If he has something to say, he needs to say it directly to you. And you also need to tell them both that the things they have said to you while you are in deep mourning and grief for the loss of your mother is excrutiatingly painful. Try to put it in terms where they are the victim and ask how it would make them feel. "Grandpa, if I had come to you when you lost Grandma, and demanded that you give me everything that was hers, how would it make you feel?"
Many people of many faiths have strong religious beliefs about how the body is handled after death, and despite your mother's wishes, he may view cremation as precluding her going to heaven or salvation or ..., so you need to be sensitive to that when you discuss it with him. If/when the subject comes up, ask him WHY he is so adamant about her being buried versus cremated; you can then address his real concern, or put it in perspective for him. Be sure to mention that cremation is what SHE wanted and requested and planned, and that her husband and all her children are in agreement on that. You also need to get your Dad and brothers involved in supporting you. If she left a will or had a living will or living trust many things should be spelled out in them. If she did not, each state has slightly different laws on inheritance and who is considered next of kin. For adults, generally it is the spouse, followed by children.
HUGS