Here we go...again~HELP~

So about 3 months ago I started dating my crush M. Everything went well for about 2 months, but then he broke up with me in a really douche way. Then 2 months later of not talking to him, we are friends now and i still have feelings for him. Yesterday i hanged out with him and I could tell he was obviously flirting with me and I won’t say I wasn’t flirting back. A couple days ago he told me he still has feelings for me, but in my mind why did he break up with me if he still had feelings. My friends say if I do go back to dating him they won’t be mad, they just want to see me happy. My mom is another story. My mom doesn’t want me to date him again because she thinks people (doesn’t matter the gender) go back to their ex, they’re weak. But my mom only dated 1 guy in her whole life (she started dating when she was 20 she’s now 37 and still with the same guy). But you see tons of people getting back with their ex and growing their relationship and I know it doesn’t happen to a lot of people but Yesterday when I met up with him he definitely changed. Like his attitude towards being in a relationship is more mature than it was before. So I will give him a second chance but if he ruins it again...idk what will happen lol. But I’m very afraid of what my mom is going to think because I don’t want to seem weak to my mom. Should I follow my heart and go back to him (of course having M work for it) but make my mom mad or following my mind having peace all around? I really don’t know what to do at this point. I just need advice.