Advice wanted please 🙏🏻

Me and my boyfriend have been together 8 months but known each other for years. Since us getting together it’s been amazing but his ex has had a lot to say about everything 🙄. He has his daughter every weekend and obviously him and his daughter would come my house until after 6 weeks ( school holidays) then she’s told him if he wants to see his daughter he’s to stay away from my house with his daughter. Now I was one supplying for his daughter as he didn’t have work or money. Which didn’t bother me I treated his daughter like mine if they got a treat so did she.

But she’s is ringing him daily and texting him none stop. I’ve said it’s strange as I’ve 2 daughters myself and their dads don’t text or call me. I’m 18 weeks+ pregnant and she’s told him she’s not happy about it and jealous… I had a gender reveal 2 days ago and he spent most of day with his family I hardly seen him that day till it was bedtime but he’s managed to text his ex after us popping the balloon to tell her gender of our baby.

In my head I feel they still have feelings and it’s not sitting right with me as I love him but I’m not being made to feel like I’m in a relationship with him and his ex. Even worse she is engaged to another man but won’t leave my partner alone what so ever

- he won’t answer phone to her around me

- he slags her off all time to me

- he does everything she asks

What is everyone thoughts 💭