Don't feel so insecure and try to compete with her dead husband - you'll lose
that battle for sure. You can't expect her to forget about her husband of many years just because she's been dating you for 3 months. Be happy that she
feels comfortable enough in your presence to talk about him; she trusts you
and she will love you more for it, if you just listen and show her some
understanding. The longer you'll be with her the less she will talk about him
and the more she'll admire you - just play your cards right. Good luck!