Thin line’s between the two:
The insecure will always remove all other people from your life in the name of love having fear of loosing you and keeping self doubt – the other person can take away him/her….you will often find them in anxiety.
It is more of a personality disorder.
Jealous people will get defensive and keep thrashing their tantrums/demands looking for approvals from other person in the name of love. Someone often getting angry, operating from looking good- you will often find them in low self esteem.
It is more of a character disorder.
Both are negative emotions…
By the way be watchful one leads to other!!!?