Please no hate, I would never cheat on my boyfriend

So me and my boyfriend have been dating for 4 years. I have NEVER ONCE thought about cheating on him with any guy that has flirted with me, or given me attention. Just for reference, I had a guy come up to me right in front of my boyfriend and ask for my number and I wouldn’t give him the time of day. But this guy from my past who I’ve always had feelings for but never acted on and we’ve communicated just by text every once and a while (he was also one of my best guy friends) just to catch up and see how each other is doing. Well recently he told me that he wanted to be with me and that he has always been in love with me, he just never got the courage to tell me. He told me that I broke up with my boyfriend that he would basically give me the world. I told him that this isn’t right and I shouldn’t be talking to him and that I have a boyfriend who I’m in love with and I can’t just break up with him on a whim. But, I’d be lying if I didn’t think about it just a little bit. I cut it off though and we haven’t talked since. Am I a horrible person 🥺