I think the first sentence would read better this way:
When considering commitment, you should think like a match-maker (or a hard-to-please parent).
Commitment in a relationship is to make a serious attempt to develop the relationship and demonstrate a willingness to make it an important part of your life.
match-maker/ard-to please parent
You are being advised to look at things through the eyes of someone who has a vested interest in the welfare and happiness of someone else (such as a parent would have for a child)
2. Both of you must be able to listen t each and not react.
This needs a bit more:
Both of you must be able to listen to each others point of view and not react in a negative or destructive way.
3.Choose commitments both with the parent or critical thinking method and the child or romantic, turned on, chemistry method.
When choosing to be commited in a relationship you should combine the ‘heart and the ‘head’
Parent/critical thinking = Head or logical thinking
Child/romantic/chemistry = Heart or emotional thinking.
(don’t let the heart rule the head, be objective and consider all the consequences)
The 'chemistry' in a relationship is a way of saying how two people react