Is it worth it to stay?

So my husband just got back from a work trip with a female co worker I despise. I wasn't to thrilled to see him yesterday cause I was still feeling pissed off about everything they got to do together. So when we went to bed he cuddled me and said he always comes home to me and that his partner for life. Then we made love. But today he's back to treating me like crap.
Is it worth it to stay?
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