This is my list:
1. At first place, I'm jealous of T's family. They are (probably) the most important for her

And they are bound forever.
2. Then - close friends. They can spend time together, talk, laugh, party, and they know each other very well. I'll never know my T

3. Co-workers - when sometimes I hear they're laughing and talking together - I think I wish to be at their place. At least this.
4. Other clients are at the end of that list. Actually, I often see only one client - an older woman. And I'm not jealous of this one. But sometimes when I notice a younger woman who is leaving the building I'm a little bit jealous and I start thinking "Is she my T's client? Is she more interesting than me? Does T like to work with her more? Do they have a better connection?". Luckily it doesn't happen often...