Asking for gp help, because you feel a bit sad, thousands have struggled with that before and will continue to do so.
It will be a bit impersonal, but the gp is only the gatekeeper for mh services, the first gp conversation will most likely be an anticlimax, also a relief, but if you feel you should go then go.
As you know you will probably be in the waiting room longer than with the doctor, surrounded by people with sore throats, so you will probably end up with one of them too.
She says your not genuine, and have become needy. I say you have suffered a psychological collapse brought on by stress. You are not functioning as well as you normally do. Hence you are behaving differently. And her drive appears even more driven from your perspective.
Ironically you are probably both being more sincere than ever before, but just can't see it.
To be old fashioned for a moment, men go for attractiveness, women for confidence, if that fits your relationship before, then that may be a turn off for her. (But don't take that too seriously)
Journaling indicates to me your state of mind, possibly more than any thing else, because I am not a psychologist and don't have a mental illness. But when under stress it is some where I go, working it all out on paper helps focus. And third parties help provide an outlet so you can avoid overloading the second person with a rambling monologue.