This might be long. Bear with me, I really need some advice and reassurance.
I'm a US citizen in a long-term relationship with a UK man. We've dated for over a year now, and although his work schedule generally keeps him confined to the UK, I work from home and can travel fairly easily.
I've made five trips (not including my travel yesterday) to the UK since January 2016 - a total of 3 months and 3 weeks, no single trip longer than two months. My most recent trip was from December 10th - January 28th, and then I just flew in yesterday (April 2nd) to stay here for a month.
I've never really had a bad border visit until yesterday. They've always asked questions regarding the validity of my stay, but everything was fine and good to go. Now I've received a Code 3 stamp (beginning with an R, I've heard that's relevant) and ambiguous warnings about how this might affect any future visa situations should we get engaged/married.
In short, I'm mf'ing terrified, y'all. I work from home and can slog enough to be able to save up to make these lengthier trips, but I don't work nor live in the UK illegally. None of my visits have been or will ever be longer than two months, and my home with my family is in the US.
First, what the heck happens now? I stated a month's stay (when really I want two months, but if I shouldn't extend it to two months, then I won't), and that's fine. I was intending to come back late August, and stay for another month, and then come back for December-January.
What's my risk here? My thoughts are I could get mine and his parents to write a statement that my permanent residence is in the US and if I decide to move to the UK, it will only be through legal visas. I don't own any property, and I work from home, so it's not like I can really get a paystub.
I'm really scared that I might have to stay out of the country for a much longer period of time without visitation on either side, as he just can't usually take the time out of his job to spend even a week or two in the US. Help?