LOL I can see the difference. Buffy and Angel were once partners so it would be weird for her to share information on her sex life with him. Cordy was never intimate with either of them though so it's a bit different.
Of course her slipping that she loves him would stop Spike in his tracks!
"Yes, because men never talk about sex, it's well known ..." Spike came out sarcastically. LOL This is a lovely bit of snark.
Sorry for the late answer! Thank you so much for your comment
Yes, I think Buffy's logic here (re: talking about their sex life respectively with Cordy and Angel) was a little bit in the wrong. :P
I'm glad you liked it! :)