Im pretty sure I didn't contradicted myself. My second comment was just a re-worded reiteration of the first...
My point is it sounds like you are trying to create a story...but a beer approach would be to capture a story. Usually the ideas that randomly come up while you are in the shower or taking a walk are much better than those you develop while purposefully brainstorming.

How much of this plot have you worked out? Or are you looking for a general premise? Or are these questions about romantic comedies in general?

this idea did come to me randomly, thats why i decided to persue it.
ive worked out a bit of the plot, all i ahve it whats above.

i decided i will have the girl try to leave the relation, but my problem is what can she do that is logical to get out of it.
i havent yet decided what phobia the guy will have but he'll have something. i cant come up with something crazy of how shes gonna get out of the relationship because my audience may not accept it.

Most of your comedy will be in how she gets out of the relationship AFTER she has moved in.

Have her try a few things that backfire, then the final and desperate move is pretending she is a lesbian.

a

ive been wondering about the guys condition, what would be most humorus
a fear/hatred of poetry
fear of plants
i was thinking of making him sort of a neat-freak and have the girl be very relaxed with the idea of perfection in the home.
with being a neat freak he may also have a fear of disease and therefore hate it when things are dirty.
leading him to hate plants, cuz the dirt could have germs. or something.

Are you in the process of writing this right now, or are you trying to nail everything down before you actually put ink on paper?

I ask because my own feeling is that you probably don't need any help, but perhaps you need to start writing already. Your ideas are good. The process of writing will answer your questions better than we can. In my experience it never works if I try to have everything planned out in my head in advance -- it can take all of the life and spontaneity out of it.

why wouldnt i be writing right now? ofcourse i am. im getting a whole lot of details to make variations so i have them for later.
I may need help but i am personally confident in this idea. But with being new to this site and to generally "good" filmmaking in general, i have to question what i do to know what i can do better with the plot, becuase i know my weakest point is the story im telling.