Hi, I'm very new here...but I felt I needed to give my support to you too ~ you have been very UNselfish in all of this. You sacrificed your own happiness for the sake of your daughters'. i hope your chat goes exactly how you plan it to...be very honest..your daughter is now old enough to ask the questions, so she is old enough to hear the answers (obviously being very tactful too, leaving out bitterness etc ).
My youngest doesn't live with me, he lives with his dad, because I felt at the time, to maintain any kind of relationship with him (he was being torn emotionally unknowingly to me) it had to happen that way..it doesn't mean we gave up, it doesn't mean we don't love them, it's a mother's love for her children. My son and I get on great, and he stays whenever he wants to, along with his weekend visits..it meant me and their dad kept a good relationship going...so many reasons why some of us mums are put in this situation. I have always been honest with my son, he chose this too...but he always knows the door is open for him
Good luck hun, it's time something worked in your favour xxx