Coworker asked me out to lunch and I asked my boyfriend for advice. Now we're not speaking. Am I in the wrong?

Anonymous
so me (21F) and my boyfriend (22M) have been dating for about a year. Everything has been going well so far and we usually sort out small arguments really quickly.

However... i recently started a new job in an office. Its a small office and most are 50+ but there's one guy who's 23. Today he asked me out for lunch. I told him I had a boyfriend but thanked him for the offer. He told me he wasn't interested like that and we both got a bit embarrassed. I then told him that I had to work through my lunch break anyways today but maybe tomorrow if I get a chance we could.

A few minutes after this conversation I texted my boyfriend and told him everything and asked his advice if I should go. boyfriend said he'd meet me for lunch today if I wanted, but said just the two of us, not the coworker. I told him I was working through lunch anyways but I wanted to know if he thought the guy just wanted to be friends or if he had romantic interest, because its been hard meeting people when I'm working full time and I didn't want to turn him away if he just wanted to be friends.

My boyfriend started getting agitated at this, calling me naive and saying of course he doesn't want me to go out with another guy for lunch. If he had just told me he was uncomfortable i wouldn't mind, but he spoke to me very disrespectfully and acted like I was being completely unreasonable. I asked him if we could talk about it later instead, when I'm home and we've both calmed down but he just kept saying he didn't give a shit what I did etc.

We've never had an argument about this kind of thing before, but usually my friend group would be girls. We usually compromise during arguments and acknowledge that we were both wrong but in this case I really don't think I was.

We have no agreed upon rule about friends of opposite sex and he doesn't have any female friends he's very close with. The one main thing we agree on is being honest, which I think I was.

I'd really appreciate some opinions. Am I in the wrong
Coworker asked me out to lunch and I asked my boyfriend for advice. Now we're not speaking. Am I in the wrong?
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