'Summer House': Watch Lindsay Hubbard and Danielle Olivera's Tense Season Finale Face-Off (Exclusive)

etonline.com:

Lindsay Hubbard's activated, but in a way  fans haven't really seen before: subdued. In ET's exclusive sneak peek at Monday's all-new episode, Lindsay and (former?) BFF Danielle Olivera face off in their Hamptons share house kitchen over Danielle's reaction to Lindsay's engagement to boyfriend Carl Radke.

It's a week after Carl popped the question, meaning it's also a week after Danielle experienced a mix of panic attack and grief over not being included in the special moment.

The only cast members Carl clued into the proposal were longtime friend Kyle Cooke and series newcomer Chris Leoni, a point of contention for Danielle and, eventually, her then-boyfriend, Robert Sieber.

He called out Carl for not giving Danielle a heads-up that he'd be getting down on one knee, which led to her unexpected reaction to the news.After crying to a producer, asking if she should even attend the couple's surprise engagement party, she spent much of that event lamenting to Lindsay's friends that she felt left out of something she wished she'd been a part of, even though she questioned Carl and Lindsay's race to the altar and milestones in their relationship over the course of the summer. «I have been wanting to celebrate you for a really long time,» Danielle tells Lindsay.