Hello Brandeis! The Hollywood romance radar was going crazy this week with engagements galore, as well as two more very unfortunate celebrity splits.

Last Monday, People Magazine confirmed rumors that Pretty Little Liars' Troian Bellisario is engaged to Suits' Patrick J. Adams.

Bellisario, 28, plays perfectionist high-schooler Spencer Hastings on the popular ABC Family show based on the book series of the same name. 

Adams, 32, stars as Mike Ross, a college dropout pretending to be a Harvard Law School graduate.

The couple met when they both starred in the 2009 play Equivocation. Reportedly, Adams proposed back in January. However, Bellisario managed to hide her ring until recently, flashing the sparkler during Paris Fashion Week.

In other Hollywood engagements news, a representative for Girls' Allison Williams confirmed on Wednesday that the 25-year-old became engaged to her boyfriend, Ricky Van Veen, the co-founder of CollegeHumor. Besides starring on the hit HBO series, Williams is also a 2010 Yale University graduate and the daughter of NBC Nightly News anchor Brian Williams.

You may have seen this last engagement report coming from a mile away, but on Thursday, People magazine confirmed that actress Mila Kunis is indeed engaged to Ashton Kutcher, whose divorce from Demi Moore was finalized last November.

Kunis, 30, was photographed wearing a big diamond ring while shopping with her mother on Thursday. Kunis and Kutcher, 36, previously starred together on That '70s Show as on-screen couple Jackie and Kelso.

Now, they have made the on-screen romance a reality.

It wasn't all happy engagement news out of Hollywood this week, though. Apparently those blurred lines got in the way of singer Robin Thicke's marriage. The couple released a statement last Monday confirming that they have separated after being married for nine years.

In fact, Thicke and his wife, Paula Patton, were high school sweethearts. Media outlets continue to report on the "Blurred Lines" singer's attempts to win his wife back.

At his concert in Virginia on Thursday, Thicke supposedly dedicated his performance of his song "Lost Without U" to Patton. Since the news surfaced, many have attributed the separation to Thicke's recent antics tied to his radio hit "Blurred Lines" (including his raunchy MTV Video Music Awards performance with Miley Cyrus).

Musical power-couple John Mayer and Katy Perry have also called it quits. On Wednesday, numerous media outlets speculated that Perry, 29, called the relationship off. Just this Valentine's Day, photographers snapped the couple cozying up to each other.

Mayer, 36, and Perry began dating back in the summer of 2012; however, the two have had a rather rocky, on-again-off-again relationship, splitting up twice before getting back together this last time.

So, perhaps that means there's still hope for reconciliation. Here's to hoping that next week brings better news for Hollywood's heartthrobs!