Love advice

Hey ladies. I’m coming here for some advice. I have been with my boyfriend for two years. The past year it has seemed like he’s either gotten really comfortable or he just isn’t as in love with me anymore. And I notice it. We only see each other maybe twice a week and talk often. His behavior has been really different too. She doesn’t like me laying on him or hugging him. He doesn’t like kissing he says it’s too much. Hell only do it whenever we have sex. And he ignores my messages. Idk. Am I wrong for wanting to see new things with new people? I’ve hung out with someone before as friends. Nothing happened. But he intrigued me. And I have a co worker that I have crushed on since I’ve met him. But I love my boyfriend. I just don’t know what the right way to go is.