I have a manuscript with a reputable agent. He has had it more than seven months. When I ask him about it he replies by writing, "I am considering several new projects and yours is one of them."
Although his words are encouraging, I am getting frustrated. Is it unusual for the process to drag on like this? How long, Miss Snark, how long is too long to wait?
(Miss Snark sneeks a peek at her data base to see how long the oldest manuscript has been languishing. Whew!!! Only since June!)
It's entirely possible that this agent is not blowing smoke up your asterisk. Sometimes it does take that long.
Your mistake here is pinning all your hopes and dreams on one guy. While he's lollygagging around, YOU should be querying. Don't stop querying till you've got an offer for representation on the table.
I'm in the last stages of signing my next client. The process is about a year long what with reading, some revisions, and Miss Snark's lollygagging. This guy was WELL within his rights to keep querying. He didn't (and I'm glad of course) but I wouldn't have held it against him if he'd said at any point "yo! Snark for Brains, three agents have made me offers and I'd like to let them know soon. If you're still interested in this, I'd still like to work with you" or some such other nice reminder that Miss Snark needs to get out of her bathtub o'gin and start actually working.
You are not a supplicant in the publishing world. You have a product. Keep pitching till you place it.