ExBP remarrying, new "daddy" for my kids

[How to communicate after a contentious divorce...]

With a divorce finalized 3 months ago my ExBPW announced she is getting remarried.  We've kids, 3 & 5.  My 5 year old told me today that her mother "... . wants her to have a 'daddy' at her house."  Personally, if it were me getting remarried I would make it clear to my children that while my new spouse is special and a part of the family, she is not their mother.  Nevertheless, my ex operates according to her own rules and there's nothing I can do about it.  It's hard knowing that despite fighting for the right to see my kids and showing up for them their whole lives, some man walks into their lives, is introduced as "daddy" and gets to spend more time with them than me.  Anyone have an experience or advice on the matter?   

[theirdad]

With a divorce finalized 3 months ago my ExBPW announced she is getting remarried.  We've kids, 3 & 5.  My 5 year old told me today that her mother "... . wants her to have a 'daddy' at her house."  Personally, if it were me getting remarried I would make it clear to my children that while my new spouse is special and a part of the family, she is not their mother.  Nevertheless, my ex operates according to her own rules and there's nothing I can do about it.  It's hard knowing that despite fighting for the right to see my kids and showing up for them their whole lives, some man walks into their lives, is introduced as "daddy" and gets to spend more time with them than me.  Anyone have an experience or advice on the matter?   

[mywifecrazy]

My God I'm so sorry to hear that. Your username says it all you ARE their REAL and ONLY Dad. I take your custody is less than 50/50 by your comments. I would try EVERYTHING to get your custody increased if possible. But no matter what be the best Dad you can be. Your kids NEED you. Don't give up or give in! Love them kids as only a REAL Dad can. She showing her true BPD colors with such a STUPID comment and a HORRIBLE thing to say to a child. But what do you expect from someone that thinks and acts like a vengeful child!

Hang in there brother! Karma is a bhit, she'll get hers. Just be there as much as possible for your kids!

[theirdad]

Thanks mywifecrazy.  I appreciate your words.  Yes, sometimes all we can do is show up and be the best parents we can.  For me that can be hard to accept.  My custody is, at this time, less than 50/50.  I'm working on that but it will take time.  Thank you again for your perspective and encouragement.