Single Mamas- at what point did you decide the struggles in your relationship weren’t worth sticking around for anymore?

I’m finding I ask myself this question more often than not lately. I just don’t know at what point it isn’t worth it anymore. I keep trying to hang in there but I’m unsure if i should keep doing that.

Was there any one point or one thought that made you decide to call it quits or to keep pushing?

My baby is 3 months old and the majority of the time I think I need to stay because we have the baby and I don’t want the last 7 years to have been for nothing but I’m not sure if that’s enough to suck up the arguments, loneliness and misery daily.

Any words of encouragement would be appreciated.