Lilworthy, no-one thinks you don't love or care for your dd.
May I try to see what has happened?
You were in an horribly abusive relationship with dd's dad, where you lost all self-esteem and confidence.
Police were involved.
The relationship ended (well done
).
Since then contact has occurred with the help of his parents.
He has often left dd with his parents so that he can go and spend time with whoever his current gf is.
He has interfered in a relationship you had after your split, as a result of which that relationship ended.
He is now seeing his dd every other w/e but still leaves her with his parents so that his new love life is inconvenienced.
His family have lied to you by not telling you about the current girlfriend, whom he has been seeing for 2 or 3 years; you had been led to believe that she had only been around for less than a year.
You would like to meet the current gf as you think she will spend quite a lot of time with your dd.
You are worried that your ex is not to be trusted with your dd.
You are worried that your ex's gf is not to be trusted with dd.
He has made some serious threats to you, and the police are aware of them.
Is that right?