Am i wrong for feeling like this??

Am i wrong for feeling this?? My husband brother is depending on us to take him to the doctor ok. We live long ways why cant he take the bus or find another ride. He aint paying us gas money hes in 30s hes grown and has a kid and a gf. We live in another state its close to 2 hrs away.... my husband dont know how to say no.... i have kids to tend to and keeping them out of school for nothing makes my blood boil... i had to catch a bus when living there because i had noone to take me anywhere.