Boyfriend’s women best friends

Hi All:

My bf and I have been together for about three months. My bf has a few women best friends and one particular women that he is friends with, their friendship makes me uncomfortable. I understand that in life opposite gender friendships will arise, however, I am still getting to know my bf and the nature of their friendship intimidates me and makes me uncomfortable. This other women has a bf, but their relationship isn’t stable, so she vents to my bf about it. In the past (before my bf and I were together), they went on vacation together (alone), went out to eat together (alone), and they are/were very involved with each other life. My bf tells me about her, but as a woman, I feel that nature will happen and that no two opposite gender people can be “friends” and spend a lot of time together without one starting to like the other...I’m saying this from my experience. My bf and I have discussion about her and he tells me that I have nothing to worry about and that they are just friends. I am not too sure if they still spend as much time together as before bc she has a new bf and my bf and I are quite new in our relationship, but getting serious.

Even if anything physical never happens, there is still the possibility of emotional cheating. Am I being insecure as a woman? Or is it a respect thing? I have always told myself that my man could never have another woman best friend bc nature will happen.

Also, my bf told me that growing up his father would have many woman friends over their house and that his mom would be ok with it. I feel that this has been embedded in my bf, but since I am uncomfortable with it, I just want to be respected. What do you all think?