Buffy is the stepmom

Tried to search and it said there were no results, so not sure if I read it here or not. Buffy is married to Angel and Spike/William is his son. I remember Angel not coming home for dinner and Buffy being upset. I think at one point Angel was annoyed at how well Buffy and Spike got along....I know there are a few of these out there but I think in this one he is more like William

TIA

There is:

Oedipus Calling by Addie Logan

http://spikeluver.com/SpuffyRealm/viewstory.php?sid=22306&warning=NC-17

Summary: Buffy Summers is sure she's found Prince Charming in her new husband, Liam Angelus. However, when a surprise house guest changes everything, Buffy learns how quickly a dream can become a nightmare.

This may be the one. Even if it's not it's a really good story.

Thank you, but nope...that wasn't it. I have read that one though, the story I am talking about has Angel being pretty decent and Buffy was a lot less intentional/obvious...
Thanks

Could it be Deny Thy Father by: Vanilla?

http://spikeluver.com/SpuffyRealm/viewstory.php?sid=32519&textsize=0&chapter=1

Summary: For six months, Buffy Summers has tried her best to ignore the way her stepson watches her, and the way it makes her feel. But her best isn't nearly good enough...

That is it!!! Thank you