If a man spends sixty bucks or anything less than 100,
1- He does not like you. He knows you are not classy!
2- He is just being gentleman not to hurt your feelings.
3- He was just plain bored and wanted to use you as an entertainment object.
4- He had a fight with his wife at home and did not want to spend so much that she will find out. Perhaps has kids to save money for them.
5- Don’t be surprised if he gives you his leftover also as a kind gesture to eat as lunch next day! Saying: “No I insist”. What an awkward situation innit?