It is not a bad idea to fall in love with a house. In fact it is THE thing that you should do. Never settle for less. Make an interim purchase if you must but know that it is only an interim purchase and then do what you must to acquire the home of your dreams.
People who have trouble with "falling in love" with a house may believe that they shouldn't for philosophical reasons or that they will never be able to find and/or afford that "one and only" residence. This type of thinking may be appropriate on the basis of a current pay scale or of a need to keep from becoming attached to material things.
Separating out realistic thinking from idealistic dreaming is what a good realtor can help with. Helping you to ultimately acquire what you really want and what you actually can afford is what every true realtor should be about. But, keep in mind that with a strong mortgage background, I may be able to open up some doors that others can't.