This logo gives more emphasis to emotions than typically medical.
The relationship is represented by two trees (partners) that together have a common treetop made up of a lot of leaves (everyday relationship between partners) that together make a harmonious whole in the form of a circle (a harmonious marriage).
The two trees together make a beautiful tree that develops and needs to be cherish to keep it still a big beautiful tree.
The logo is in a style that is suitable for all age pairs (no heart - too youthful) and has seriousness and credibility.