In an emergency, contact the Samaritans: call 116 123.
https://www.samaritans.org/
For further reading, here are my recommendations:
https://placesjournal.org/reading-list/peter-braham-reading-list/
An entertaining and insightful talk on love and marriage:
https://www.youtube.com/watch?v=v-iUHlVazKk
Free audiobook of "The Courage to be Disliked", about the ideas of psychoanalyst Alfred Adler:
https://www.youtube.com/watch?v=YK3JC1k4rTg