im in a poly relationship and I dont know if this is the right thing or not :[

Me and my Boyfriend of a little over 3 years have recently started a poly relationship with a good friend of ours

currently things are going good everyone understands everyones boundaries wants and needs and there hasn't been any issues everyones happy and we have a schedule for certain things such as sleepovers hangouts etc. so everyone gets the equal of everything aswell as giving everyone their space

My worry tho is if this is the right thing because im worried that somthing will happen and I will lose my boyfriend of 3 years or my "friend"

Should this be somthing me and my boyfriend should commit to 🙁

(me my bf of 3 years and the "friend" are all 18+)