I'm going to do the last two question-y segments, because I really like the last one!
😉
1. Ever been moved to tears by a Spike/Buffy scene?
Better question: have you every *not* been moved to tears by a Spuffy scene? lol. No really, Spuffy is the couple that gets the most tears out of me. I know it sounds silly, but I cried like a baby at the end of Intervention. It was so sweet. It just... it's hard to explain. But that was how love should work. And the fact that Spike probably wasn't even going to tell the real Buffy... God, I love Spuffy. So much.
2. How likely is it that Buffy and Spike would discuss their Ex's and other past relationships with one another?
I find it impossible to imagine Spike and Buffy chatting about Buffy and Angel's relationship.
BUFFY: I loved him more that I will ever love anything in this life!
SPIKE: *classic Spike "you're kidding" look)
http://www.screencap-paradise.com/caps/displayimage.php?pid=617999&fullsize=1
So yeah... no. I can sort of see them talking about Cecily, though.
3. Biting is often a feature in fanfiction love scenes. What do you think, would Buffy ever allow Spike to bite her during sex?
I'm fairly sure that ship has sailed.
4. The funniest Spike and Buffy moment?
From Tabula Rasa. When Spike just figured out he's a vampire, and is going on about how he must be noble a help the helpless and all that stuff and he's all excited, and Buffy just looks totally bored.
SPIKE: I'm a vampire with a soul.
BUFFY: A vampire with a soul? Oh my god, how lame is that?
5. Do you think we'll ever get a canonical (in text) clarification as to whether or not Buffy meant her "I love you", or do you think Joss will keep us guessing for ever and ever and ever?
Nope, and I really hope we don't. *I'm* totally sure Buffy meant it, but I like that it's in the viewer's hands to decide. The ambiguity is what connects the relationship to the audience.
and now part 2...
1: What is the best wordless Buffy and Spike moment (you know what i mean - a shared look or glance, a reaction - but with no words)
Eeek! There are so many! I think I'm going to have to go with Touched, when Buffy's lying in his arms, and they're looking into each other's eyes... perfect.
2: Imagine Spike and Buffy are going on a date. What are they gonna do?
Drink tequila and go to a demon bar. Because honestly, I thought they both had the *best* time in Life Serial.
3: In the episode Crush Spike wears clothes other than his traditional ensemble – any theories as to why?
Because he wanted to show Buffy he was a guy she could date. Same reason he held the door for her and generally acted really weird.
4: Do you think Buffy knows about Spike's poetic inclinations?
I'm not sure she knows all the gory details ("my heart hath spake!"), but I think she knew he wrote it. I can see him telling Buffy he wrote really silly, stupid poetry before became a vamp in FFL, and then just leaving it at that.