What do you do when your friends don't make as much money as you?

Im only asking this because I don't care. I love my friends, They are wonderful people, and I would rather be friends with a person who I know loves me and is a good person, than just having a friend in the same income bracket. The reason im asking is me and my husband both finished school (even though it was hard long work ) and now have great jobs, and make good money. Im the last few years its really starting to pay off , we have little to no debt, a great home, nice cars and all our needs are well met. However, most of my close friends did not finish school, but they have jobs they like, but are not as well paying or good hours as me and my husband. I have never noticed this but lately my friends have started making comments. Two of my close friends have made lots of jokes to my face about me and my husband "rolling in the dough' or were "banking". I did not know that this has bothered them this much. I even had one friend ask me to give him a couple hundred dollars for something he wanted, and stated to me a couple hundred dollars was just a drop in the bucket to me. This is starting to make me feel uncomfortable. Im having several of them over tonight for the Superbowl, but me and my husband feel as if maybe they think were being snobby, but honestly I never realized it was an issue till our friends started making comments. Should I talk to them or just ignore it. I dont want them to think we dont want them as friends, or to make them more uncomfortable. It's not like we are millionaires, just maybe upper middle cl.