Boyfriend and crush ordeal

I hate to admit this but I have a crush on someone that has a huge crush on me at work. He likes me to the point he tries to not be around me anymore cuz he’s frustrated I have a boyfriend. I love my boyfriend so much we started talking in November and recently started dating. so I feel bad saying this but I kinda care that he’s upset about it. I shouldn’t care.. but I do and am frustrated also it’s messing with my emotions. He is very sweet to me and shows me how much he likes me in actions (work guy). He told me bye I can’t do this with you anymore go talk to ur bf being dramatic saying he has to quit cuz he loves this girl here (acting like not me) but sounds like it is.. on the other hand my boyfriend keeps me grounded and could easily support us and a future. I tried so hard for us and the relationship. I was so excited when he asked me out. My boyfriend tried to hangout with me for 5 years before it actually happened and we actually ended up liking each other so much. It always seems like the guys come out of the wood work at the same time. I’m 21 almost 22 years old and my boyfriend is 24. And the work guy is 19 almost 20 which is kinda weird ahh is it? Idk but I have no one else to talk about this with so here’s my rant / vent sorry. I feel so ashamed of myself but I can’t help how I feel like this..