Methods may be provided to operate a network node supporting dual connectivity communication with a wireless terminal as a main network node in cooperation with a secondary network node. Dual connectivity communication with the wireless terminal may be provided in cooperation with the secondary network node. Responsive to deciding to suspend the dual connectivity communication with the wireless terminal, a connection release message may be transmitted to the wireless terminal, a suspension indication message may be transmitted to the secondary network node, the dual connectivity communication with the wireless terminal may be suspended. Related methods may be provided to operate secondary network nodes and wireless terminals.