This is sweet. YEs, she came to him out of desperation but as far as we can see, she isn't lying, isn't putting the moves on him anymore than he is putting them on her and she is a widow.
Yes, by all means, single mom's are not ideal. But there are single mom''s and there are widows.
Besides, not sure if there was a confirmation to the contrary but it might still be is kid as iirc, they broke up 17 years ago and the kid is 16... might be wrong but i won't reread.