wait, excuse me.
but buffy and spike destroyed the scoobies. one of the reasons season 7 sucks was because of too much buffy and spike. I think the problem with buffy and spike is that unlike buffy and angel, the writers became very obsessed with spike. he was like their pet character and the writers stopped at nothing to make spike look good and a hero so they character assassinated many other characters just to make spike look good. for example, giles conspiring to kill spike behinf buffy's back that destroyed buffy's trust in giles and made her trust spike more...something that never happened when she was with angel and when I thought things could not get worse, xander, willow, dawn all supporting buffy getting kicked out of her house and spike been the only one not betraying her? pulleeeeeeze...it was totally ridiculous and bad writing.
spike is a character that should have been realistically killed off by season 4 but stayed on the show because he had a lot of screaming fan girls. so that was how and why the buffy thing started. in fact the buffy and spike thing made no sense even from the basis that buffy had already been with another vampire that just happened to be spike's rival. the show did not have the guts to kill of spike so they gave him something new to do like started obsessing over buffy and rewriting the buffy lore so spike can stay on down to how the concept of a soul worked for ensouled demons.
No, angel and buffy did not destroy the scoobies because angel was actually a part of the scoobies and gave buffy a better balance dynamic in her life unlike spike/buffy thing where buffy was so isolated in season 7 that all she had and trusted was spike.
Angel respected buffy's friends and family and a chance of buffy to have a normal life. please this was the same angel that said buffy needed to go to the light and live her life not remain in darkness with him, now compare that to spike that told buffy...she did not belong with anyone (her friends) but she belonged in the darkness with him , then he partially rapes her in the balcony of a club.
and no angel did not make all the decision for buffy, he made the hard decision in their relationship because buffy was so in love with him that she could not face reality and angel forced her to face the reality that there was no future of them. that was the realist romance buffy ever had.
sorry, buffy and spike was gross and less real. I will even take riley over spike, I wished the writers invested more with riley but as spike got more insanely popular among women watchers, riley got the end of the stick and the spike obsession started. spike and buffy is the prefect example of what happens when writers fall in love with a character and can not separate the art from the fangir-ling