feeling possessive and jealous- just PMS?

My boyfriend is meeting an old friend for drinks. This friend is female. This friend was a bitch to him three years ago right before he got together with me. They hadn't spoken since then until April. I love and trust my boyfriend to the ends of the earth. Its her I don't trust--she apparently made several attempts to hook up with him before he met me, while she was in a relationship. I know I don't really have any reason to be jealous, because I know rationally that nothing is going to happen, but I'm also super PMS-y, and so my judgement is pretty shit. Should I tell my boyfriend that I feel uneasy about her, or just let it lie until he brings it up? Any advice would be welcome. Really I just want to know how to deal with this jealous, possessive version of myself. Thank you in advance 💕 Update: eve is being a little crappy and I'm unable to see some replies, so sorry if I'm not replying, it's a fault with the app, I think? I have only been able to see the ones that I have replied to so far 😩 💕