Boyfriend problems please help!

Kendra
So I have a boyfriend and I'm 19 and he's 21 but he's just very overprotective and I can't hang out with my friends everything is just being with him. We have been dating for 4 years and now that I'm working full time there's a very good looking guy that works with my company and he's 28 and he seems to be into me. I don't really know but he has taken me out to lunch and when he's driving he kinda tries holding my hand. But I don't know what to do should I leave my boyfriend? This other guy is very mature and attractive. Please help 😔