فَالْيَوْمَ لَا يُؤْخَذُ مِنكُمْ فِدْيَةٌ وَلَا مِنَ الَّذِينَ كَفَرُوا ۚ مَأْوَاكُمُ النَّارُ ۖ هِيَ مَوْلَاكُمْ ۖ وَبِئْسَ الْمَصِيرُ
So today no ransom will be taken from you or from those who disbelieved. Your Mawla is the Fire. It is most worthy of you, and wretched is the destination. [Surah Hadeed 57:15]
As we know; ‘That is because certainly Allah is the Mawlaa of those who believe, and indeed the disbelievers have no Mawlaa.’ [Surah Muhammad 47:11]
The meaning of Mawlaa is one who is willing to protect you, and does protect you.
Your Mawlaa is An-Naar [the fire] - which can not protect anyone, so in reality its not a "mawlaa" [protector]. By what we understand from the word is like "the only thing that you could take for a mawlaa is an-naar [the fire]" "that is your only refuge", when that is not even really a protector. Infact, it's your own enemy.
This is similar to when Allah says;
وَالَّذِينَ كَفَرُوا وَكَذَّبُوا بِآيَاتِنَا أُولَٰئِكَ أَصْحَابُ الْجَحِيمِ
But those who disbelieve and deny Our signs - those are the companions (As-haab) of Hellfire. [Ma'idah 5:10]
Because the hellfire is not a good companion, rather it is your enemy. And a Sahabi [companion] is someone who is always with you.