She wants to keep herself in his life in some capacity.

By liking all his posts, your BF is constantly reminded of her existence.

This is how exes remain fresh in the memories of their counterparts.

Although he is her ex boyfriend, liking all his posts is how she stays alive in his mind.

No matter what he posts, she is liking it.

Whether he is posting about a cat, his family, or what he had for breakfast, she is liking it.

The next question in your mind is obvious.

Is his ex doing this to get him back?

You didn’t want to go this route at the outset.

Being the quintessential, jealous girlfriend isn’t a label you ever want to have attached to you.

But you can’t help but worry that your BF’s ex is liking all his posts with the intent on getting him back.

There is legitimacy in having this fear or worry.

As aforementioned, an ex who is liking all of your boyfriend’s posts is looking to remain a constant in his life.

The question is, why?

It isn’t always because she wants the ex back.

Before she broke up with him, she got used to having him in her life.

She was liking his posts back then too.

It’s hard to break old habits, especially when there is an amicable breakup.

To her, it makes sense to continue liking all his posts.

This is what keeps her from feeling too alone while she no longer has him in her life in a romantic sense.

It makes her feel good to know that she is someone he hasn’t completely written off.

That said, it’s not that she wouldn’t take him back if he were to try getting back with her during this time.

Notwithstanding, she isn’t making a diligent effort to get back with him by liking all his posts.

If the breakup was amicable and she was liking all his posts when they were in a relationship, she is inclined to keep liking his posts, as long as she remains single.

She isn’t sending him elaborate messages on his phone or sending him DMs.

She is strictly liking all his posts.

This is good news for you.

It means that she isn’t making an aggressive effort to get him back.

Liking all his posts is fulfilling an emotional need.

It’s akin to two exes who broke up but keep hooking up intermittently.

They are in a limbo period where there is no one else they are dating seriously.

During this time, they sleep with each other on occasion to satisfy their sexual needs, but there is no genuine desire to get back together as a couple, at least, not a mutual desire.

That is what this ex is currently doing.

While she is in limbo, without a boyfriend, she likes all your BF’s posts for the emotional reassurance it gives her.

In her case, it isn’t a sexual need she is satisfying in liking all his posts, it’s an emotional need.

Once that emotional need is met by a new guy in her life, expect the frequency in which she likes his posts to drastically reduce.

On your end, don’t be that quintessential, jealous girlfriend that you so disdain.

Instead, concentrate on being the best girlfriend a boyfriend could want.

In time, his ex is going to find new love and you no longer have to worry about whether she is going to take your boyfriend away from you.