Advice wanted

Sarah

Last year when I unfortunately lost my little princess Bai. My ex and his new girlfriend told our boys they was expecting a little girl this was back in October/November. My boys are now 6 and 9 so they understand everything.

Anyway this baby of theirs was due 7th may she then said her dayes changed as follows 27th may, 7th june 17th june 7th july. I know this doesn't make sense.

Anyway tonight my ex has text me ( we have never been on talking terms since breaking up he picked kids up an drop them off an only text when he was on his way) says hes moving away and asking to call him wen i can he needs to pick my brain, turns out theres no baby she has lied about it!

LIED ABOUT HAVING A BABY!! LIED TO MY BOYS!!

How do I explain this to them after losing there baby sister last year? Im so angry someone can lie so badly about it