Maybe the ache felt, good, just a bit. Maybe it helped to remind him that he was alive.
He held onto her as long as she'd let him, and a low sound followed the deepening of the kiss, one leg coming up to rest against her hip. Large hands splayed against her back, one high up between her shoulders, the other down in the soft dip before the swell of her hips. It chased away the pain, turned it into something else, crossing wires. He didn't mind it. It didn't matter. She mattered, this matter.
As always, he didn't fighter when she drew away, just moved his arm to accommodate her as she snuggled up against is side again. "I missed you to." But he was glad she hadn't been there.
For a long moment they could linger like that, her head on his shoulder, and his head turned so he could feel the soft brush of her hair against his face. Then, when he felt himself drifting, he'd give her a soft nudge, gesture up towards the pillows at the head of the bed, and help get her moving up there so they could lay properly, a sheet tucked in around them.