okay, i need a christian perspective on this, because in newer to the faith and have no clue what to do.

my son's father has been in and out of his life since the day he was born. he keeps coming back around saying he's changed and he wants to be in his life because he misses him and all this other stuff.

every single time that ive given him a chance, he's ruined it. he'll get mad at me over the smallest thing, block my number, then text me a few months later doing the entire thing over again..

i get that we are supposed to forgive and forgive and forgive the way God forgives us, but am i supposed to let him come in and hurt my son for the rest of his life?

my son is only 21 months right now, so he doesn't even know who this guy is, the last time he saw him was in January before he turned 1, so it obviously isnt hurting him now, but the more and more he grows and his father keeps doing this, it's going to get really hard for him and im not prepared to keep putting my son through that, especially because i had a very similar relationship with my dad growing up. my dad passed away in July of 2017 and it truthfully didn't even really phase me because i never had a real relationship with him.

im just at a loss right now and im tired of the games with my son's father 😐