I've made a kind of observation that got me thinking (seems interesting to me anyway), generally when something is felt in one person, the people immediately working with them will be influenced, but in different ways depending on how that person operates. I was remerchandising at work with some others a while back, and my colleagues were getting
quite frustrated with everything because displays wouldn't fit, I couldn't find things, etc - there was an obvious atmosphere of tension, and other people picked up on it - (Steve said to Colin that he could tell he was annoyed). I was a tiny bit annoyed, but more than that I was a bit frightened and felt unappreciated - and that they assumed I hadn't tried and were pressuring me, the same thing affected me a bit differently, because my main concerns were different, as an analogy the avalanche of feelings cascaded differently because the lay of the land was different.
I've seen the same thing with love too, one example being d for e (for confidentiality), at the time it seemed the more intensly he felt, the more it pushed her away and I have seen this before (on TV lol), so what one person felt affected what the other one did, but not necessarily the same way. I think one reason for that is she wanted him to not depend on her, and another being that intense 'love' can frighten when someone can't predict how the person with that feeling will react, and it can feel trapping too. Also I think, when someone falls for someone, they usually fall for the person being as they are in normal conversation, and turn into something unknown/different that the other person may not be familiar with when they change modes to express love, because you have a different situation and backdrop. This creates a paradox that whenever people enter 'love mode' they are away from what the partner actually loves, and the relationship would have to be mixed with the friendship of the old kind (that is the source of the love) to keep it going.
What would be good and self-perpetuating would be if humanity in general changed the lay of the land to love the 'love mode' of the other person, so that by expressing, they are also perpetuating it. Obviously we all have to go to sleep some time and we won't always be able to hold the same mindstate when we go to work or whatever, because the issues and challenges are different and take you away from that, however it should be fairly easy to re-initiate I suppose, just with an expression.
Furthermore I was thinking, to me love demands expression... perhaps I am demonstrating love for the people who've helped me in life when I try to express it through (trying) to help others?