Found out my gf's dad signed up for latin america singles club

My gf is devastated when she found out that her dad signed up for latin america singles club. Her mom and dad broke up about 6 months ago because of irreconcilable differences. She’s quite sad that her dad seems to be hopping on singles events as much as he can as she’s still hoping that they would get back together. How do I comfort my gf? What should I tell her?