Are there any grammatical errors in this piece of writing?

Mark sat in his living room in a state of sluggish depression, utterly ignorant to the fact that his fiancée, Sarah, was in the bedroom doing the same. A rather severe conflict had just gone on between them and their pain, which was of equal measure, dwindled their ability to communicate; they became fully solipsistic in their mutual distress. Their debate had started after Sarah questioned Mark’s ability to make love to her. He felt pitiful of himself and anger for Sarah and her acute sincerity. He could not bear the weight of the guilt that rested upon his heart so heavy and he uttered things into Sarah’s ears that not even the misogynist would think moral to lay upon the heart of a lady. Eventually and inevitably, their souls became weary of such a situation and departed from the vessels of their bodies; no superego rose from the flames of the fire and instead, they became separate entities compelled by their own, personal sensations rather than the other’s. Thus, they sat here in a quiet disposition as if illiterates who could not verbalize their various thoughts and feelings.