Statistically CT in general is pretty safe, obviously use common sense, remember to lock doors/windows, and learn self-defense. These are things you should do in general, regardless of where you live IMO, so don't take it too nervously. When you compare Middletown to Hartford it isn't even close, so I wouldn't be particularly worried. Also plenty of nearby suburbs are fine. Cromwell, Rocky Hill, Portland, East Hampton, Glastonbury, Wethersfield, etc.