We've been seperated 3 years and he's now on his 4th GF in that time, DD has been introduced to all of them but hasn't yet met the new one. This GF is a GF from when they were in their teens and they've got back in touch recently via Facebook. She's not yet left her husband (nothing to do with meeting my ex, that was all on the cards anyway) but my ex is freely talking about her to our DD and last night told DD that they're all going to go on holiday abroad together in the summer. I'm REALLY not happy with this. There's no jealousy issues, it's just that I don't think introducing DD to the latest in his string of GFs is a good thing until he's sure as he can be that it's pretty permanent. Also, DDs time with her Dad is precious to her as she still misses him, woke up crying the other morning which was heartbreaking, and I want their time together to be one on one, not with new GFs. There's always next year IMHO, and if he wants to spend time with the new GF then they can go away weekends together. Am I being unreasonable? I could always refuse to give him her passport I suppose...