I need to vent

A good friend of mine committed suicide on Sunday. We had a falling out a few years back and now I can never say I'm sorry. And me being me this is really eating me up inside I feel horrible about the whole situation. I've been married for 2 1/2 years to a man who I thought would support me though everything ..well not even 24 hour after i found out my buddy is "gone" I'm being told to "get over it". And I'm soo hurt I can't even focus straight I'm also being told there's nothing I can do so let it go. Obviously I know it's to late for me to help but I just need a minute to myself to wrap my mind around everything is that to much to ask for? Am I being unreasonable or selfish? Anyways R.I.P Gobeo u will be missed my friend