Help!?

So me and one of my friend had a huge fight almost a year ago and we just started talking and hanging out about a month ago well I’ve been dating this guy for 6 months now and my bf and my friend have been talking a lot lately and last time this happened was with a ex and he ended up leaving me to be with my friend well she turned him down and he decided to try to go to a different friend and they ended up having a baby together well with that happening more then once to me I have that feeling it’s going to happen again and idk how to explain to them why I’ve been pushing myself away and not exactly talking to either one of them.