"[color=#1C2837][size=2]Also, should I have mentioned the main reason for break-up was religious view ..."
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[color=#1C2837][size=2]Should've mentioned that, yes, and while it's silly, it's a common compatibility issue.
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[color=#1C2837][size=2]Don't know what "unrealistic views" is either...
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[color=#1C2837][size=2]Normally I'd just cut the person off 100% and if I were in your spot, when she tries to talk again I would just say "I'd rather not continue this" or something to that effect. But I'm not there. So... I dunno.
This is easier said than done, depending on the length of the relationship. Although he was with her for a couple of months, a lot could happen in those couple of months, especially since the first few months are the infatuation stage. We can all give advice to him, but ultimately its his decision. And what matters is how he feels. I just want to point out that, unless she is really religious, it might have been a just an excuse. And btw, the "I love you" part came not from her, but from her religion.