Farrah Abraham pays tribute to “the love of his life” Derek Underwood 13 years after his death

American television personality Farrah Abraham attends the 2021 Women in Film (WIF) Honors celebrating “Trailblazers of the New Normal” at the Academy Museum of Motion Pictures in Los Angeles, California on October 6, 2021. (Photo by Chris Delmas / AFP) (Photo by CHRIS DELMAS / AFP via Getty Images)


Farrah Abraham turns 13 since she lost “the love of [her] life.”

On Tuesday, the reality TV star shared on Instagram a carousel of photos of the gravestone of Derek Underwood, his former partner and father of their 13-year-old daughter, Sophia.

“13 years later, I am grateful to see ‘FATHER’ on your gravestone today,” she said. captioned the message. “I am grateful for our family, I learned more about the human condition, grief, trauma, loss and depression. Your life has made all the difference to mine and to so many others.”

She continued, “In living memory, peace and love to DEREK UNDERWOOD, the love of my life and the FATHER to our amazing and blessed @sophialabraham. A thank you, a goodbye, one always on my mind, giving me the strength to make the world a better place Blessed. “

Never miss a story – sign up for PEOPLE’s free daily newsletter to stay up to date on the best that PEOPLE has to offer, from juicy celebrity news to gripping human interest stories.

Underwood died in a car crash in 2008, shortly before Abraham gave birth to their daughter at 17. His journey was reported on MTV 16 and pregnant. She later appeared on Teen mom and Teen Mom OG.

Abraham was last featured on Teen mom in 2017. She then sued MTV parent company Viacom for $ 5 million, claiming she was fired from Teen Mom OG due to her decision to work in the adult entertainment industry, according to court documents obtained by the explosion at the time.

RELATED: Farrah Abraham back on MTV Teen mom Deductible for the new derivative series

In September, a source told PEOPLE that Abraham would return to his roots on the network.

According to the source, she has signed a new MTV spinoff series that will bring together the cast of Teen mom OG, teen mom 2 and Teenage mom: young and pregnant.

The next series will bring the stars together at a resort, where they will stay under one roof for an indefinite period.

The release date for the series has not yet been revealed.