Long story short.. Few months ago I've met a girl and she was (and still is) totally awesome and probably the best I've met (so far). We are together since January and there are literally almost zero problems with our relationship in general. We don't argue, she does everything I want (including sex), doesnt make any shittests on me, totally zero woman behaviour.

Well when something is totally awesome the karma has to strike so in the end, it's not that awesome. This girl used to be an ex of my best friend and because we got somehow together, he got really mad/pissed and I probably lost him because of that, we are not talking anymore.

The second thing is that this girl lives in a polyamory relationship. For those who don't know what it means - It basically means that she has another guy she spends time with (1-2times a week). We discussed this in the beginning and told her OK and gave her a green light. Well, it turned out that I'm not really quite ok with this. Im totally fine till the moment she gets out with him. I gotta get high or something so I can stop thinking about that mofo which fucks her right there.

But then she comes back and is totally unchanged, gives me a lot of love and sex, her behaviour is unchanged. I don't know how is she able to do this, but she does it, and does it really well.

Well but I'm confused, is this worth it ? I lost a best friend, I have a great girlfriend with no problems but she fucks another guy sometimes. I don't want to let her go but on the other hand I'm not 100% okay with her fucking another guy. What to do?

inb4 - Find another girl as well - well, this could be, but I'm so monogamous that I don't have a need to find another girl. It's not that I don't want to, I just don't have a need. I have a lot of sex and love and sh*t everyday, don't need to find another girl. Or should I ?