In the early stages of a relationship, many couples may not care to make the distinction between themselves and their partner in the pleasure and rush of sharing everything together. However, as a committed relationship continues toward a long-term path, it is not uncommon to start looking critically at a partner as your lives merge more and more, and finding these criticisms as a reflection of yourself. It could also lead to a feeling of identity loss and fear that independence is being lost to the relationship, especially when certain losses are expected by your partner.
Read the full article here: Losing Self in a Relationship Can Create Extreme Reactions