Should I be mad

So my huband has this female manager he works with whom in.past he use to give rides home to. I cought him an her texting inappropriate. so I told them both there will be no more texting or.rides since they dont know how to.be friends with oppisite sex nor respect our marraige. Long story short all that was put to an end. Last night our truck was having trouble and my husband called his mom mind u her an I are great friends an she is awear of the past with him and this female. He was with his other co worker and for some reason this girl stuck around. So.he and the girl an his friend got a ride home from my husbands mom. Now my question is should I be mad that this girl hung around stayed late an cought a ride home with my husband instead of.taking her ass a cab. Like she usually do since my husnband has told.me he stopped giving her rides. He said she was concerned an he had no intentions of giving her a ride in our truck before it stoped working. Smh hard to believe. Anyways I.feel.hes lying an. Im.also upset.with his mom for.giving her a ride. His mom dosent like her but shes so kind.hearted so I.could.see why.she.gave her a ride. But now I.feel.like.this.girl.still.may have.been getting rides hime smh