Bf offers help to my other co worker before me

Hello. Is it wrong to feel jealous or mad to my bf if he helps my co worker first before me?

My bf & I work together in one office. We always see each other everyday. One time it was raining so hard and my co worker forgot her umbrella so my very kind bf offered her to get into his umbrella and went with her to her car! Now I was left behind like a lost puppy. He didn't even bother to let me get to our car first! Is it wrong for me to feel this way? Am I overreacting?

There was also a time where he offered to give her the food first he even offered it to me. We were all together in the pantry and he didn't even bother to give it to me first? He just told me he does it because he just wants to help. But why help/offer it to her first?