Should I be upset...

My boyfriend has a woman’s number in his phone and the woman is next door to us. He fixed her car and told her If something happen to call him.... but she lives next door. I so happen to see texts popped up.! It was her. She asked him did he want some chips and a watermelon... didn’t wanna knock on our door to upset my dogs. Should I be upset?! Thing is he gave her his number if her car had anymore issues. But we LIVE NEXT DOOR! Soooooo am I overeating that she texted him...........