Fiona reunites with Gus while Frank works to keep Bianca happy in the season finale of "Shameless" premiering Sunday on Showtime.

According to Sho.com, viewers are in for a treat in Episode 12 of Season 5, titled "Love Songs (In the Key of Gallagher)."

At the start of Season 5, Fiona seemed to have reclaimed her responsibility in the Gallagher family, Entertainment Weekly reports. But she has drifted away from her family since then and has neglected parental responsibility.

Fans hope to see Fiona and Debbie have a real heart-to-heart since the sisters drifted apart. Throughout the season, Debbie has wanted to be closer to Derek's family now that her own is falling apart.

She thought the grand answer to it all was to have a baby at 14 years old and drop out of school.

Debbie would throw her life away just to feel a part of a family and it is up to Fiona to give her the love and attention she needs.

It seems like Fiona has no idea she has been neglecting her siblings so much and maybe Debbie could help her recognize that.

Although Fiona is reuniting with Gus in the season finale, some fans want to see her do the right thing and let him go. They have had enough of the love triangle involving Sean, and Gus does not deserve the nonsense.

In the last episode of "Shameless," titled "Drugs Actually," Fiona gets much of her emotional support from Sean who deals with all of her family chaos, according to Entertainment Weekly.

He is there for everything just as she supported him when he lost his son and wife. But then Gus called her to say his tour had been canceled and he wanted to see her.

Meanwhile, Frank tries to help Bianca by ratting her out to her parents for the bad decisions she has been making ever since she found out she is losing her battle with cancer.

But then he realizes that he wants to spend every last moment with her, even if it's to fulfill her incredible death wishes.

Will Fiona finally cut Gus loose? Will Frank put his foot down for Bianca? Stay tuned into the next show to fine out. "Shameless" on Showtime at 9 p.m. Sunday, April 5.

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