Once you’re in a relationship, the domestication process begins. Why do women do this – and how do you not become totally broken and domestic?
The difference between a serious long-term relationship and a short-term relationship, from the girl’s point of view, is complex in many ways.
She expects more investment from you, emotionally and logistically. You will have to spend more time with her than you would if she was a simple hookup. You will also have to do more than simply shag her then kick her out. You will meet her friends, her parents, and go with her to events and on dates. How much you should do this is up to the precedent you want to set and how often you WANT to see her. If you LIKE doing those things, then do them.
The emotional side of things is a bit more complicated. How much emotion you should show depends on the girl. The harder she is emotionally, that much harder you should be (i.e., the less emotional you should be with her). She should be the one most in love, the most lovey-dovey, and the most cuddly. This is not up to debate. However, if you show no emotion, you can cause her to become too insecure and cause a lot of drama so that you end up proving your love in a small burst (an emotional down payment into the “I won’t suddenly leave you” fund), or she’ll seek that emotional fulfillment elsewhere, in another man (and this might turn into sexual fulfillment, too).
She also expects some level of commitment. Sexual faithfulness is far less important to women than emotional faithfulness. A hookup or having some low-key side chicks doesn’t bother women too much, so long as they know they are your queen. Obviously don’t rub this in her face if you choose to have side chicks. Be discreet and low-key.
All of this, when viewed from the complete freedom of singledom, cannot be described any other way than domestication.