I neither support nor attack the implied subject of the OP; however, it's interesting that in the case of Helen Keller to note:
Helen could not see those around her. She could not hear those around her. She had only the sense of touch to even know there was an external world in the here and now.
The argument could be made that touch is the most ephemeral of our senses, and often (at least colloquially and perhaps parochially) we refer to other sense - primarily sight - as being something needed to validate certain events ("seeing is believing"). Often sight is the principal mechanism of measurement, and for those without sight a tranlsation of a visual measure might be made into an audible event.
Indeed, that seems to be the backbone of the OP.
Yet there are variations of this sense we call "touch", which might be termed "kinesthetic response". There are nerves that report on informatino from the external world to the surface of our skin; that's fairly the most general definition of "touch".
Yet there are other nerves that report on physical events entirely within the body. This sense of "touch" can be found when internal structures contact each other, and a variation on this is the way interal "touch" is translated in our experience to allow us to sense what position various parts of our body (such as our limbs) are oriented. This is most easily demonstrated by shutting your eyes and moving your arms around - you can probably tell by an internal "touch" sense where your hands are without looking.
Now, we also know that our emotions are based in the biochemical actions within our physical bodies - hormones are released in response to certain thoughts, for example, which creates a feedback mechanism captured by our cognitive apparatus. Thoughts of loved ones create create a cascade of chemicals that we perceive as an emotional state.
So it's easy to see that memories, thoughts, impressions - even fantasies, daydreams, desires (not to mention digested chemicals like theobromine or designer drugs) - can indeed trigger "love", an emotional experience.
And it might be inferred that certain interactions - electricity, magnetism, who-knows-what - can interact with our internal felt sense, our internal sense of "touch", to promote awareness of a "not-me" something.
Helen Keller had external "touch" to tell her of "another" outside of herself. She had no sense of sight or hearing to validate this other, could not behold what they were doing without that direct contact, yet "another" did exist, and I presume she held love for some of these "others".
Similarly, we can imagine our ideal "other" and, though visualization, fantasy, imagination, "behold" them internally withit sight or other physical manifestation.
Once perceived in the mind - through touch, internal awareness, imagination, what have you - the experience of love is available.
With or without reality.
Love is always occuring within us, even if we're wrong about our understanding of a person's actions or motiviation.
Just as we can experience apprehension, fear or concern when any number of non-real events seem to take place.