[She patted the seat next to her.]

Subaru, while under the influence of the card, probably said some things he truly did feel. Those feelings, while spurred on by hate, held grains of truth that he may not have wanted to deal with or even acknowledge. He has to come to terms with those feelings just as you do.

Give him time. When he is ready to face the emotions the card brought up, he will be ready to speak with you as well.