relationship advice

Hey girls! So I broke up with my boyfriend of 9 months a month ago and a week after I broke up with him I started dating someone else. I'm just feeling now that I rushed into things and I still need time to heal from my other break up. What should I do? And this guy that I'm dating now is nice but he's super boring and we barely talk or see each other. The problem is he's my best friend's boyfriends friend and I don't want her to get mad at me if I break up with him. What do I do?