First time ever posting on reddit and I'm not the best at writing things so I'm not entirely sure how to say things and get my point across although I'll try my best.

Basically myself (M28) and my fiancé (F26) have been together for 7 years and engaged for 2 of those years. I would like to first state that we both work throughout the day, come back home together and we hangout/cook together and I would say that we're very close and behind closed doors are the stereotypical "cringe" couple with each other. Now since meeting we've been into playing video games together as it's something we both share as a hobby although around 1 year ago we somewhat splintered off into different game genres after I had began spending my couple of hours of gaming time in the late evening playing by myself, which she was very supportive of as I hadn't been that interested in a game for a very long time.

Now, due to this my fiancé began feeling a little lonelier when we end up having our online video game time she wanted to meet a group of friends with similar interests which I understood and despite offering to pickup the games she enjoys again to play with her, she turned me down being supportive of me sticking to what I'm enjoying. So being as supportive as I could possibly be towards her and helping her how I could reach out in her gaming community to find a group to play with, she ended up meeting 2 people from another country. There is (M27) and (F27) who're both roommates and had been best friends since high school.

Many months past by and I continued my lone wolf style of playing by myself which is fine and is not what concerns me as I enjoy my own company although a ton of drama occurred between the 3 of them which has ended up resulting in the (F27) completely falling out with the (M27) and my fiancé and has now moved out of his apartment that she's been sharing with him and she ended up messaging me wanting to let me know that her room mate (M27) never stops talking about my fiancé, has sleepless nights to hang out with my fiancé and she got weirded out by the whole situation as she felt like they was too close. Also just to point out something that made her feel especially uncomfortable was that (M27) has booked plane tickets to come to my country in September this year and spend 2 weeks hanging out with my fiancé and they've both been planning places in my country where she wants to show him and where he wants to visit.

I've many times mentioned how weird it makes me feel although it's always met with the usual response "You know you're more than welcome to come everywhere with us" and "There's absolutely nothing weird going on, he's just my bestie"

So, am I being the asshole and overly jealous here? Especially considering I'm apparently wanted to go everywhere with them during his visit later this year? I'd love to hear other opinions as I've not spoken to anybody else about this as I've on the outside been trying to be positive and supportive over her having a close friend although internally, I'm genuinely upset and hurting.

Thanks for reading, my apologies for any grammar mistakes!