An old manager of mine – I am in touch with him over text messages for the longest time.
The last time we spoke on phone was over 11 months back, and there’s no pressure to keep in touch.
We sometimes text months later, on work and life updates. Sometimes 2X a month!
And I think it is important to have relationships like these, that do not need any commitment, just a little bit of (often unexpressed care) that could travel thousands of kilometres, at our own pace.