Not married yet but have lived with my girlfriend for the last year while building a startup and having contracting to pay the bills. Biggest thing I've learne

Not married yet but have lived with my girlfriend for the last year while building a startup and having contracting to pay the bills. Biggest thing I've learned is to set aside enough time to do things just the two of you with the computer off and the cell phone silenced. Make sure your love knows they are first priority in your life. When you are stressed communicate why you are stressed, don't just try to extinguish it. Ask for help when you need it, you aren't alone anymore :). And get a clear financials plan. Stressing about money plus the day to day stress of building a startup can really damage relationships.