[15] From January 2009[16] to April 2012, she was in a relationship with Fabrizio Corona; they broke up[17] when she met dancer Stefano De Martino, whom she married.

[4] Rodríguez has worked with Gerry Scotti, Maria De Filippi, Paolo Bonolis, Michelle Hunziker and Gianni Morandi.

[3] She made her acting debut during 2010 in the cinepanettone Natale in Sudafrica, directed by Neri Parenti and released on 17 December of that year.

[37] Rodríguez guest starred in several episodes[38] of the second season of Così fan tutte, an Italia 1 sitcom directed by Gianluca Fumagalli, in 2011–2012.

She dubbed her voice in the animated film Gladiatori di Roma, directed by Iginio Straffi and released on 18 October 2012.

[53][54] In 2007, Rodríguez appeared with Elisabetta Canalis and Christian De Sica in the Telecom Italia (TIM) commercials as Donna dei Sogni (Dream Woman).

In June 2013, Rodríguez became spokesperson for the Bikini Lovers cruise-wear line created by fashion blogger Chiara Biasi.

[62] In December, Rodríguez was the spokesperson[63] for Javier Zanetti's Pupi Foundation and (with her husband, Stefano De Martino) for virtual application software created by WeChat.

Rodríguez and Cecilia designed and produced[67] Me Fui, a new beachwear line[67] for 2014, and Belén became the spokesperson for Samsung mobile phones.

She posed nude with three other models (Eva Collini, Ainett Stephens and Nena Ristić) for the De Nardi Calendar 2006.

On 18 February 2009[82] Rodríguez said in a Corriere della Sera interview that several years earlier she declined an offer to pose nude for the cover of Playboy Miami, preferring to remain in Italy for a fashion shoot with an Emilian company.

[100][101] From May to July 2018, Rodríguez modelled and endorsed for RaNpollo,[102] Hanny Deep,[103] Comme Des Fkdown,[104] Gaëlle Paris,[105] and Pyrex.

[110] She appeared on 4 April 2008 episode (introducing 18-year-old Cecilia in her Italian television debut)[9] of Rai 1's prime-time variety show I raccomandati, hosted by Carlo Conti and Alessia Ventura.

[111] In 2008 Belén, after modelling for Max magazine several months earlier, Rodríguez appeared in the sixth season of L'isola dei famosi (a Rai 2 reality show hosted by Simona Ventura)[1] and placed second.

[3] During 2009, Rodríguez co-hosted (with Claudio Amendola and Teo Mammucari) the eleventh season of the prime-time variety show Scherzi a parte on Canale 5.

[3][113] She guest starred on 23 November episode of the 10th season of Italian Big Brother, a Canale 5 reality show hosted by Alessia Marcuzzi.

Substituting for Ivana Mrazova [it], Rodríguez co-presented (with Elisabetta Canalis) during the first two evenings of the February Sanremo Music Festival 2012.

[124] That year, Rodríguez hosted Italia 1's afternoon Come mi vorrei [it] (the Italian version of Plain Jane) and guest-starred on Colorado.

During the 2016–2017 season Rodríguez appeared on L'intervista [it],[133] Nemicamatissima [it],[134][135] C'è posta per te [it], Emigratis [it] and the Maurizio Costanzo Show [it].

[141] She guest-starred on the 17th season of the talent show Amici di Maria De Filippi with Maradona[142][143] in April 2018,[144][145] and with Michelle Hunziker[146] in May.

[147][148] During the 2018 FIFA World Cup, Rodríguez appeared on the sports talk show Balalaika – Dalla Russia col pallone [it].