As much as the thought of Spike being alive and not letting her know annoyed her, upset her, the fact that he was alive outweighed everything and anything else she could feel towards him, especially anger. Buffy never thought she'd see him again. She'd lost her mother, countless friends, and innocents, but never once did she ever have the chance for one of them to come back. Angel had gone to a hell dimension, but Spike died, burned up by his own sacrifice for Sunnydale and for her. He was part of the reason they escaped that day, part of the reason Sunnydale was crater in the Earth instead of still spitting out evil left and right. Thanks to him, there was one less hell mouth for them to face. Thanks to him, a lot of young women, new slayers, were still alive and able to fight the good fight he always talked about.
She held onto him tightly, still so scared that at any moment he would fade, slip through her fingers like sand in the wind. Like a dream, a dream she'd had too many times before. The one where he returned, alive and well, finding her somewhere in England, in Europe. It was only a dream then, but now, somehow, it was real. Completely real. He didn't fall through her arms, didn't disappear, and the faintest scent of cigarette smoke clung to him, ensuring the vampire in her arms, the man she'd claimed to love was very, very real. "Yes, welcome back. I don't remember, but I hope I have a good time," she replied quietly. It was high time that she step back, release him, proper hug time and all if there was something like that, but Buffy held on a moment longer before reluctantly stepping back.
"Spike-" she broke off, unsure what to say. "I missed you" just didn't seem to cover it, did it? And the whole "I love you" was way too deep and difficult for Buffy to comprehend right now. It had been back then, but when she said then, it had been true. Completely true. Sure, she was still in the entire baking process or whatever, but to say she didn't have feelings for the recently resurrected vampire before her would be a lie. She cared for him...a lot. "I should probably invite you in. Instead of standing here, staring at you like an idiot..." she trailed off and quickly stepped aside. "Come in. Please."