He doesn't love me

I've been with my boyfriend nearly 6 years, we have 2 young children and I thought we were happy, until he told me that he doesn't love me anymore. I also found out that he has been texting a girl and he said that she makes him feel good and says all the right things. I haven't treated my boyfriend well, for the past 4 years I didn't show him any love at all and I pushed him aside once our first child was born which I know has destroyed our relationship. I want to know if it is possible for him to fall back in love with me as he doesn't ruly believe I love him when I do. We are going to try and make a go of it for the sake of the children, I just want to know if there is some hope or if we should give up now?

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