Site title issue

Hi, I have a concern which I hope you can assist with. With the header media title, it’s 2 peoples names “Maverick & Delmarie” – you enter it in the customiser. But on some mobile screens it cuts the name in half and displays it as follows: “Maverick & Del- marie” Is there any way I am able to change this? So that it doesn’t cut the name in half. It can be "Maverick & Delmarie" Or "Maverick & Delmarie"   I would only like to change it on mobile screens, it's fine on the pc.