Ethical dilemma regarding a funeral ..?

i recently found myself confronted with an ethical dilemma ... The thing is ..i have already made the choice ( and took action ) but would appreciate any ones input as to weather my actions were correct or not !.. right here goes .. A few weeks ago i was contacted via face-book by an x girlfriend who wished to "talk" .. she thought that we had some " unfinished business" .. since she was the one who dumped me originally , i decided to reply to her message ... i am married she knows this and i kinda knew this was prob ally not the proper thing to do( bit like cheating on my partner) .. anyways she left me her e mail and phone no. details i did the same .. . so i texted her .. we talked about old times etc and it became apparent that her mother was very unwell an had been so for a long while .. over the next week or so we stayed in touch and then she stopped contacting me ..i sent her a text message asking her what was wrong it turned out her mother had ped away at the previous weekend .. i knew she would be busy with arrangements etc so i gave her some space.. i seen the death notice in the local paper giving the funeral detals etc.. the service at the house was private, which i respected but the date/ time for the cremation was stated in the paper .. i don't know any of the family or indeed the deceased but i thought out of respect for my x , i would make an appearance ? ( which i did do ) i was discrete , i did not go into the service and just waited outside to give my ex a bereavement card and a hug ( which i did do ) .. i left as soon as i did this .. the last text i recieved was that she wished that i would've asked first and that this was a very private thing for her..she has now took her profile of face-book and it looks like she is once again annoyed with me ? . any suggestions anyone ....