After Jeffrey has Buzz run down by a car on his birthday,
Jenna risks all, and puts her plan into action to rid herself of Jeffrey,
permanently.  (SID Cover Story: June 24, 1997)

Jenna loves Buzz enough....

...to break his heart and bear his anger... 

...when she allows Buzz to find her in "bed" with Jeffrey. 

Thus, allowing her to protect Buzz and simulataneously giving
her an opportunity to kill Jeffrey somewhere outside Springfield
where his body won't be found and Buzz won't be involved.
(Hey it could have worked!) 

Harley sweats the truth out of Jenna with a little arm twisting
thrown in, in the Diner's broken freezer.   Harley convinces Jenna
she has a better plan than murder.  The "Sting" begins (June 20, 1997)

Buzz wants answers when he finds his daughter Harley with the
woman he thinks betrayed him. (Buzz is so hurt he won't
even give Jenna any water) 

Foes, Jenna and Harley team up to bring Jeffrey down. 

Jenna is stunned when Jeffrey pulls up a seat to watch Harley
"Starla" and Phillip in bed via closed circuit tv,  threatening the "Sting".
(I still think Jenna should have stuck to the original plan, then she
wdn't have had to...you know...UGH...yeah, great plan Harley.)