I reckon...
(and again, I alone, and don't take it as an advice) that the problem is also partly that you don't know what you miss. You miss the language? That's understandable. You find Israelis good in bed? I might not really understand why, but to each his own taste. You find that "israeliness" has a certain charm, and more to the point, probably israeliness in Canada, not in Israel. With Israelis in Canada you don't only share a nationality, but also the fast you're all different. I have no idea what it's like in North-America or Australia, but being Israeli in this part of the globe (probably more in Sweden than anywhere else) is not just "being a foreigner" or "being different". I don't miss Israel, i don't miss Israelis etc. etc., Israel has never been an option or home for me, even though I spent there my first 18 years and one more army year afterwards. But I do know how it's like to be moving (a lot) and not having a home, a partner or anything of that sort. What you describe is also a general gay thing. Usually also happens to people who move from a very small and closed place (and Montreal is not really big either) to a very big, sleazy gay city. It's hard to find a partner, and the search doesn't really look like searching either. So I guess it all comes down to the same point. At the end, you'd have to either get over it or get back to Israel. These things usually develop into little monsters (and I know a few good examples who sounded exactly like you at first and then developped all kinds of obsessions). But then again, I probably missed quite a bit from the large picture.