<human>: We been together almost 7 years. I love him to death but I feel like he in some ways has control over me. He has to know what friends I'm with or what family members I'm hanging out with all the time. 

Well anyway my guy friend said he wants to have lunch with me that's all just to talk and hang out we are just friends. But I know my bf will kill me for this. He's constantly moody and I try not to get him in a bad mood. I mean is it really wrong to hang out with a friend for lunch?? My bf is the only guy I ever been with so I don't know much about relationship boundaries...but he has gone to Vegas with his friends, parties, and I never say anything and if I do he does what he wants anyway. I feel so guilty at the same time though even if its just a harmless lunch. Should I just tell my friend its not a good idea?

Could you distill the essence of the text into 1-3 sentences?
<bot>: is it bad to hang out with someone of the opposite sex while in a relationship? Even though its just lunch with someone who is just a friend?