Keeping old flings as friends when in a relationship.

MY current boyfriend still talks to his latest ex (yes, the one BEFORE me) until now. Honestly it annoys me, because she should be out of his life by now. I keep imagining things they have done when they were together back then... But I thought to myself that I am just being unreasonable and quite immature about this. I respect the fact that things ended on a positive note between them. I think that if me and my ex ended in good terms, we would still have our casual hi's and hello's every now and then (sadly it was a bad breakup). Anyway, I've managed to build my trust on him and believe that my boyfriend has no other intentions than to be friends with her. I'm assuming that it's coming from my insecurities that I'm jealous of this whole thing :)

I think it's just fine to stay in touch with old flings, but there should be a certain boundary that should be kept. No secret meet ups or late night conversations. And as long as my boyfriend doesn't hide it from me, we're good ;)

I can't see any propblem, maybe they was together for a long time, ans still care for each other, not in love ways, but like friends, keep in mind its hard to throw a person out of your life, with who you shared everything. Its like loosing a friend. Its doesn't mean that he/ she still have strong feelings for ex.i keep in touch with nearly all of my exes, but its doesn't mean that I want to be with them or I still love them.