my wife thinks I am too scrawny

jesus christ, im 6'1 and weigh 150, an I am definitely scrawny, you are beyond that amigo..

excercise, and eat alot. thats what im doing but i dotn want fat so im just getting skinnier..

Eat pasta. Lots of it.

Are you healthy? Do you feel well? Do you have an acceptable amount of energy? Are you able to accomplish physically what you want? That is really what counts.

If you look at averages, I suppose that you are a bit thin. For your height, the average weight is about 145-49. IMO, I think you are better off on the side of thin, than the other way.

you are 6 inches taller than qu3, and only weigh 27 pounds more.

based on the old rule of thumb of a base of 100 pounds and 5 pounds for every inch over 5 feet, you two are cut from the same bolt of cloth.

If you are healthy, I don't see that as scrawny, more like wirey and lean.