Bitter and Right

My daughter's father left us after getting busted for having an affair left us for the mistress...she's been on social media actively talking about a trip she has planned. The last 5 months since my daughter has been born I haven't been able to get a penny from him he left me with an extremely high house notes that honestly idk how I've been paying but somehow the good lord has been working it out. I got a new job and the pay weeks are different I would've got paid tomorrow but now I get paid next week and that's usually how I pay my rent with the check closest to the 1st of the month or the one before (I didn't know the pay cycle was different at the new job) if he goes on a trip wit this whore and doesn't give me money to help me pay for housing for myself and HIS CHILD he hasn't done a thing else since she's been here and I HONESTLY need help this one time..it's gonna be TROUBLE.