Her husband divorced her after she had a serious of scandalous affairs, mostly with slaves.

Caecilia Metella Calva

Caecilia Metella Calva was daughter of Lucius Caecilius Metellus Calvus, Consul in 142 BC, and sister of Lucius Caecilius Metellus Dalmaticus and Quintus Caecilius Metellus Numidicus.

She was married to Lucius Licinius Lucullus, Praetor in 104 BC. Instead of playing the role of a virtuous married woman, Calva engaged in a succession of scandalous affairs, mostly with slaves, that eventually led to divorce. She was the mother of Lucius Licinius Lucullus (Consul in 74 BC) and Marcus Terentius Varro Lucullus (Consul in 73 BC).

Source :

https://en.wikipedia.org/wiki/Caecilia_Metella_Calva