After finding a cure for her family's ailment Cosima would likely look into the fabric between the realities next. Of course while she'd love the science of it she wouldn't want to do anything practical. That could potentially lead to multi-universe ending tragedy and she'd just gotten her life back, thank you very much!
When he mentioned Delphine she couldn't help it but laugh. He was an Angel, who was to say that he couldn't read minds after what had just happened? "She might," she agreed. "Or she might kiss you too! She'd be just as overjoyed as I am." While Cosima and Delphine might not have met under the best circumstances, a real relationship had developed between them. God, did she hope that Delphine had somehow miraculously appeared here as well. "Still, if you ever need anything, I am at your beck and call twenty-four seven. I really mean that." He had made a friend for life.