Do you believe time heals everything?

Even if the person is very resentful for something and he/ she may not forgive. I dotn know if time will really heal my brother or he will stay that way like months and months and months.

Two weeks ago there was a bad discussion between my elder mom and my brother and lets say I was in the middle too. But between my brother and my mom they both say to each other hurtful terms. I try to be neutral and try to calm things down but the more I try the more my brother got angrier so I had to shut up. Both my brother and mom since they were both angry they spit out of their mouth the first thing that came to their minds without thinking first. I mean my mom is an elder woman she does not think what she says she just says it but she had always been that way anyway, she does not think, my mom has a strong temper and unfortunately my brother also has a very difficult temper too sometimes aggressive.

So since last week bad discussion and for the first time ever my brother stopped talking to us. He had never done that before when he gets into an argument with mom or me, beacuse days after he at least try to talk to us but this time it was not this way, he really got resented at what my mom told him, but he also said not so good things either and the problem is that neither asked for forgiveness. So since last week my brother does not talk to my mom or me, he tries to avoid us at all cost inside the house, he does not eat with us either let it be breakfast lunch or dinner obviously as he eats by himself when we are not in the kitchen, and sicne last week sometimes he does not even the food I prepare at home, sometimes he does other times he does not eat. When my brother had the argument with mom, he told us "I won't help you anymore around the house, you figure it out for yourselves" That means like picking up or dropping my mom at his weekly agriculture classes , as my brother always used to drop her and pick her up, because my mom does not drive anymore, so now we have

Updates
3 mo
to pay for taxis, my brother won't give my mom a ride anymore, also if there is something to be fixed at the house we can't count anymore on him we now have to pay someone to come to the house to fix anything. If we are invited to some relative get together, my brother excuse to the relative is he can't go but that is only in order not to be with us if mom and I want to go so now we have to call a taxi or ask my older sister who lives im another town to pick us up, just in case she can.
Updates
3 mo
My brother is the man of the house now after my dad passed away 10 years ago and my mom is not getting any younger and each time she needs more help from us her children for things.
My mom wrote him a letter telling him that both said bad words and thta things can't continue to be like this and forgive him and told him other stuff from her heart. I dont know if my brother read the letter, got rid of the letter or had not read it yet. Will time heal my brother or not? How long he will remain quiet
Do you believe time heals everything?
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