Family means different things for different people.
For Kailyn Lowry, it means maintaining friendly relationships with the three men who fathered her sons ... and remaining involved in their lives, even as they move on with new partners.
And it was in that spirit that Kail attended the wedding of her first baby daddy, Jo Rivera, over the weekend.
Jo and Kail have been friendly for years, so it's no surprise she was invited -- but some fans were caught off guard by her choice of companion ...
A Different Kind of Happy Family
Kailyn, Jo, and their eldest son, Isaac, all posed for pics and seemed to enjoy themselves immensely as Rivera exchanged vows with his longtime girlfriend, Vee Torres.
Kail and Isaac
Isaac was in the wedding, of course, and Kail seemed genuinely happy for her ex and his new bride in the pics she posted.
A New Day
Kail posed with the bride and groom throughout the night, but she also made plenty of time to party with her wedding date ...
Kail and Becky
Kail attended the ceremony and reception with her longtime friend Becky Hayter. For reasons that aren't quite clear, some fans seemed surprised by Lowry's choice of date.
Becky and Her Bestie
Kail and Becky have been close friends for years, and despite persistent rumors to the contrary, there doesn't seem to be a romantic component to their relationship.
Attacked By Trolls
Even so, the bigoted morons came out in full force to give Kail a hard time about ... attending an event in the company of another woman?