my daughter follow up

Hi and thanks for all your replies.
I totally have no intensions of giving up on my daughter.i lpve her deeply.
My prpblem is wen were together either alone or with my partnermy daughtrr is totally relaxed a.d happy.like a normal girl should be.thr problems start wen were not together.i hardly get replies to messages I send.even if its just to say hi or goodnight.she just seems so distant.her mam on the other hand gets regular calls of her wen shes with me.wich is grrat.
last year she was told not to speak about wat goes on up there.its like she has 2 seperate lives..my rxs partner I will br honest I dont like his ways.but I am in noway jelouse or bitter.i just dont like his credentials as a role model for my daughterbut accept it for t it is.
My ex has now started to se.d messages to my partner sayi.g things like I hope you see him for wathe is.wt I am is a good man.and she knows it.but my partner refuses to reply.shehas now gpt my daughter to send similar messages.
I have offered to meet with ex with my partner to sort things out but no joy.
So wat im doing now is leaving things for a couple of weeks so daughter can settle in senior school without any hassle.i miss her so much wen apart.but know wen were together,its a matter of weeks before it happens again.im in a awful situation,along with holliday I have booked for just me and daughtet.i know that will causr hassle to.
I just want to move on with the woman I love now.and not have my ex as topic of conversatjon allthe time.my partner understands but its so unfair on her.
Funny because wrn ex left for another.she wanted me to move on and be happy now I have.i cant move on fully becsuse of sit with my daughter.
Thanks any advice would be great