Is is bad for one to be exciting oneself ually and not having an ?

i was wondering if it was bad for one to be exciting oneself ually and not going all the way to have an ? i was thinking along the lines that it would be releasing certain hormones into the blood system which may raise blood pressure or some-other effect. i would often be maging my wife and as a result would become very horny myself. quite often whe would not let me finish off the job leaving me frustrated.