Everybody grieves in their own way, which is why you can’t necessarily grieve together. She may not want to. That said, it’s entirely appropriate for you to reach out to her to offer condolences, check in on her, see how she’s feeling, offer her a date, send her notes, gifts and other things that let her know you’re thinking of her, you’re still there — and you’re still interested. When she’s ready (and she will be in her own time), she’ll respond.
I hope that helps. Let me know how it goes, and follow me @AskAprilcom on Twitter and on Facebook at [url][/url].