This is pretty much the same as your #1; I just find this a helpful frame:

If I'm in any situation where I'm talking with a woman, I aim to act and talk in a way that I would feel perfectly comfortable if my wife was present.

Not staying angry or resentful is also crucial. What helps is to take time at the very beginning of the relationship to discover ways that work for both to air concerns.

Jan and I, the first year we lived together, went out every Sunday evening to a local restaurant and spent about an hour:

1: saying what we appreciated about each other

2. What we were sorry we had done the past week that may have offended or upset the other

3. Asked if there was anything else we could do to be a better partner.

We would have kept doing it after that first year, but we found it just naturally became a daily part of our relationship, now in its 30th year.