I have also allowed other relationships to take a back seat to ours
...
I have been so depressed and sad for going on 8 weeks.
reach out to them.
you may find that some of them are distant, and the connection may have died. it happens, unfortunately. i think you will find many of them just happy to reconnect with you, to know how you are doing, and to support you.
you need to build a strong support system in this time. it will go a long way.