Need Advice

Rhian
I will try to be brief because I need you all to read this and reply so that I can get the advice I need. I've been dating a guy for 2 years and we have our hiccups and recover, but I'm so over her 16 year old son! I told him to let me go and choose his son (who lives with us full time btw), but he just told me to ignore his son if I dont like him. I'm willing to give up the relationship for a piece of mind but he won't leave. I'll create arguments, dwell on stuff, I've even kicked him out multiple times. More about this child tho...16 years old with only 2 school credits, always suspended, dont listen to adults, no drive or care about life, very sneaky, and dad says that he will grow out of it. I love my guy with all of my heart, but I've fallen out of love with his ungrateful child. Help!