Should I tell my 6‑year‑old that the ‘family friend’ is her dad?

My 6 year old daughter is starting to question who her dad is and the thing is he's a lot closer then she thinks and I dont want to mess her head up and confuse her.

she's so beautiful and extremely intelligent for such a little girl even her dad says the same and so has her school.

Her dad is actually an amazing man and helps us out a lot but the thing is her half brother is also a distant cusion of hers who she's good friends with at school.

She knows her dad but doesn't know he's her dad. She just thinks he's a good friend of mine which he is its just complicated and we still love each other very much just nlt romantically anymore.

I've been friends with her dad since childhood and we used to play out together all the time. As a teenager he started dating my second cusion and she fell pregnant at 18 , the whole time my future baby dad was there for her and even got them there own place to raise the baby and worked multiple jobs to help her. The thing is and she'll amit this herself now she's older and wiser. She didn't want to be the typical house wife/ mum and instead would leave him at home with the baby whilst she went out drinking and partying. They eventually broke up but still remain good friends and he still supports her as well as myself.

How things happened between us was id managed to save up to get my own place and it was abit of a fixer upper. I needed someone who could help me with a lot of the kitchen and bathroom fitting and my grandma recommended him to me as he has his own business now.

We got talking a lot when he was helping out at my house and we relised we both really liked each other. Im not the type of girl who jumps into bed with anyone in fact I was a virgin before him. We fell madly in love with each other and then I found out I was pregnant after 7 months of being together. Things slowly burnt out between us and we relised we wanted different things from life.

He continues to support me and was there for me throughout my pregnancy.
Updates
3 mo
He takes both children to school as his son is 10 and we live close to each other. He said he didn't want to explain it to her yet as she's too little to understand but she keeps asking and I think the longer we dont tell her the more she'll find it hard to understand
Updates
3 mo
Im not being biases when I say she's extremely intelligent. She ain't stupid and is saying things like "I wish Matthew was my daddy", "mummy is Matthew my dad?" etc I can't not tell her the truth. He doesn't help himself either and I think its cruel to keep it from her
Should I tell my 6‑year‑old that the ‘family friend’ is her dad?
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