Heaven must be unbearable if you know your eternity is matched by the eternal torment of people you loved on earth.
No, because she has warned him. Yes, she did love him, and he refused her love and the love of Jesus who so suffered for him so he would not go to hell.
We do what we can, but it is God's will for us to enjoy Him, and not allow evil people to have power to spoil this by how they ruin themselves by refusing God.
We offer our example of how we submit to God so we are living in His peace >
"And let the peace of God rule in your hearts, to which also you were called in one body; and be thankful." (Colossians 3:15)
So, we love people by offering this example in the sight of God. And if evil people refuse this . . . we need to not give up on our good example of living and loving in God's peace. Evil does not want us to do this; so evil does have volunteers to make this look bad, and accuse us of not caring, when they are the ones who do not care and have refused this.
So, the mother has offered the good which she can. It is not moral for her son to despise her by lying to her after she has done all in her love to help him. And I offer > it is not wise if you really love a wrong person, to allow him or her to decide if you love and have good and enjoyment with God. That is letting Satan and his people decide how we are, in Jesus. That would be . . . not smart, to say the least.
Now, of course, he might not realize how wrong he is. If he can lie to his own mother, like that, after all the time he has shared with her . . .
if she has been a truly Christian example . . . he is deeply messed up in darkness. And however he supposes he loves her is some kind of a trick on himself, if he does not love her by wanting to share all the good of Jesus with her.
And ones like her lying son are already in torment . . . because of their own character which is so anti-Jesus and therefore anti-love. God's love gives us almighty peace >
"you will find rest for your souls." (in Matthew 11:28-30) We have this, already, now. And people can see our example of this. So, if she has been his Christian example, but he just values lying to her . . . he is choosing to stay in the torment he already is in. And suffering about him will not help her, to say the least. That would be letting him drag her down with him.
If you have food and you know someone refuses to share your food with you, you don't let that make you sit and starve to death!! lolololol