Yes, Franco, you're right.
The problem is that I categorized her as FWB early on and made this clear, but I was weak and did not stick to it, I was aware of the advice in articles on this topic but was wondering if there might be a middle ground, since I am fairly independent minded and generally like to make my own mistakes in order to find out what works for me.
Anyway, I did not mind her meeting some of my uni friends that I was not that close with anyway, and it was good she met my kids because she loves kids and it dramatically increased my available dating window (in fact I was on the fence about her and had NEXTed on your advice due to slow progress, so didn't want to waste my legitimate dating window)... but the way she met my family and thus became my "official" gf was kind of accidental, e.g. she came down to beach for day and we headed out, but one of my sons had a temper tantrum lasting an hour so we ended up going back to the house, where she met my mum... following occasion I arranged to have kids attend a family event they did not want to miss, while I took my gf out to have dinner (this occurred because I double booked myself due to an ambiguity in interpreting court orders about how things restart after school holidays)... but she got carsick and couldn't eat, so we ended up chilling at my parents place and attending the family event... similar when she attended a pickup at kids school, I had planned to drive her back to city after we went to the Vietnamese market for her to buy ingredients for her to cook us dinner, but we were a little late so I didn't.
I could have been much more strict and never agreed to any of the above setups in the first place, it was because I was trying to juggle and get the most out of my schedule that she ever came into the proximity of my family in the first place, but I guess also I didn't mind because I was sort of wavering about offering exclusivity anyway, then changing my mind, this is what I mean by being weak and not sticking to it. Basically, pleaser behaviour, since I knew she desired to get closer.
If it wasn't for my other relationship I would probably go exclusive, but the problem is with my other gf we connect a lot better sexually, she also desires long term commitment but does not live in my city, so we see each other for short intense bursts of several days which also carries a risk of getting too close. She has repeatedly said she doesn't want to be "just a sex friend" and I've pointed out that we do tourism and activities together, restaurant dates etc, and we regularly talk on phone for long periods, so it's again a "have your cake and eat it too" situation. If she lived here in Melbourne I would certainly consider going exclusive with her, she's much more compliant and hence easier to hang out with, and we have much better sex since I can lead properly and hence can introduce more kinky sex etc. My current official gf is hung up about sex which makes it hard to make the decision to be exclusive, although she is a terrific girl in nearly all respects. The reasons in this paragraph are why I have let things drag on inconclusively.
Hope this gives a picture of what can happen when you fail to keep girls at arm's length. Don't get me wrong, I'm not bitching, I got myself into this situation knowing the risks and I will get myself out of it, minimizing hurt to those involved if I possibly can. I just need to take some decisions.
Ray
Edit: Drexel it's turned into an unspoken "don't ask don't tell" with official gf, cos I have been a bit frightened of hastening the end by unwisely bringing stuff up... and a "sexual openness" with long distance gf, although latter has said if I'm sleeping with other women to not tell, but I haven't complied with this. Obviously I never give any details about how many women I'm sleeping with, when I meet with them or what is the quality of my relationship with each, since this would convey a lack of discretion and be unattractive and validation-seeking, but unfortunately cos I have not been mysterious enough and often talk on the phone about my day with either girl, I have to twist and turn a bit (avoid certain topics at certain times and so on) which bothers me, and is another reason not to communicate too often, so that they cannot peg your routine or get a handle on how you spend your time, or they might notice inconsistencies when you go on a date or get a new fwb etc. Best to remain mysterious, but it's hard to do when you're trying to connect regularly and reward her with your communication. Anyway your summary of openness vs. don't ask is a good one.