Dating for 5months - should I have the relationship talk?

So I've been dating/seeing this guy for 5 months now, been seeing each other every week and going for meals etc (normally couple things).

I met his friends quite early on but more because it was a coincidence, haven't been formally introduced to anyone on his side

He has mention he has commitment issue (red flag), every time I used the word us/we he 'jokes' saying alright calm down, as wel mention a few times he's single - even though we have been dating.

This weekend he meet my close friend and her two sons, we went to the zoo he paid for the tickets and dinner, which I was unaware of and its was very nice of him. He got on well with the baby and kids and my friend loved him.

Her son made a comment about him being my BF and he said okay mate calm down with that word. I brought it up when we went bed, along with all the times he says he is single and he in so many words says actions speak louder than words and look at everything he has done

I've asked a few people for advice including men and they said if I'm not happy then should ask where it is going

I need help choosing the right words to say and if I should say it.

I really really like him and out of all my previous partners I can see a long future with him, he has potential.

Thanks for your help 😊