he said i’m not his real mom after 5 years—what now?

I loved that child like he was mine. From age 3 to 8, I was there—bedtime hugs, soccer games, tears, laughs, everything. Then his bio mom came back and my boyfriend told him she was his “real” mom. Now he won't look at me, won’t listen, says I’m not his mother. My heart shattered. I gave him everything. And the worst part? My boyfriend backed her up and left me alone in this. Now they’re begging me to come back—but after being tossed aside like that, should I? #blendedfamily #stepparentlife #needadvice