Am I over reacting

I work in the same building as my boyfriend. However, it’s two different companies. We share the same lobby and elevator so I occasionally see my bf.

I have not asked or confronted my bf about this because I don’t want to come off as insecure or crazy. I’m feeling very insecure about something I saw and I need help from you ladies🫶🏻

My bf is very social and charismatic. He’s also very attractive and makes friends easily. The women that work there are married and in their early 50s. We are 30. There’s a new girl that got hired. She started the company a month ago. I know that because she is a manager and they email the whole building regarding new managers. She came and introduced herself last month. She’s very pretty and nice body. She also is my age! I think that’s why I’m triggered because she is very pretty!

So I was in the lobby taking my lunch and I saw she was going into the office. My bf was coming out. They almost bumped into eachother and she giggled. My bf was already 8ft away from the door and he steps back quickly (literally rushing back to the door) to open the door. The girl tells him “no no i got it.” he tells her “nope” he puts his hand and body in the way and opens it for her. She made a joke “you get a raise” and he giggles.

Listen, it is very polite to open doors! I’ve had guys open the doors and as they’re coming out but not once they’re 8-9ft away. He ran to the door flirtatiously 😅😅The door was already shut. He literally rushed and refused to let her open it. Idk how to feel. I know I sound crazy right now typing this I think it’s easier to understand if you saw it.