Ladies I need some advice,

My partner left his phone on the side so me being me had a quick snoop in it... and I found texts between him and some woman he works with. Kisses on the end.. and he had text her saying ‘how come you was in my side today, not the I’m complaining’ 🤦🏽‍♀️🤦🏽‍♀️🤦🏽‍♀️🤦🏽‍♀️ girls I’m furious! Asking if she got her cakes (he’s a chef) and he’d baked her her very own ones 🤦🏽‍♀️ do j have a right to be angry? Because right now I could kil him!🤦🏽‍♀️🤦🏽‍♀️