Am I just being totally insecure

Our car broke down and my husband has this "home girl" from work bring him home from work all the time, she is gay he tells me but I'm kind of starting to feel some type of way about it. I met her once before when he took him driving for his license but she was very shy with me as if she didn't really want to look at me in my face. He told me she cried out of joy that he proposed to me before we got married because she was so happy for us??????