(25f/31m) Boyfriend lies extensively to me to make me feel wanted/special. Realising I?m not.

Hi Dating.mobi
I?ve been with my bf for 2 years now
Basically. I found out that he told me a lot of lies about his past relationships.
He lied about how much he liked them, the kinds of things and how much he did with them (sexually fx), how much he pursued them, how he took them out and did things that he supposedly only did with me, how he initiated it, how interested he was, how long things went on for and how many etc.
I believe it was because he wanted to feed me this narrative that I was the best. The most amazing. The first real relationship. The first girl he?d actively pursued. Etc. And I just lapped it all up and believed it. I know.... how could I right? But honestly, he pushed this agenda hard. I didn?t ask. I never have. But he would constantly shower me with all these compliments and it was hard not to get swept up.
All the truth came out when we met an ex of his - that he had not told me was an ex of his. He then spilled out multiple girls who he had lied about his sexual history with that he was still in contact with. These girls were ones I?d noticed him looking up on social media and when I asked who they were, he made up various stories including them being exes of his friends. Turns out they?re all women he slept with. He?s since stopped looking them up but it does bother me.
I didn?t ask for him to lie. He was the one volunteering all this information often unsolicited. But I confronted him and this all came out.
What?s worse is he feels justified in his lying. He thinks he deserves praise for ?admitting his lies?, and also tells me he just ?wanted to make me feel special/wanted? so he embellished the truth or whatever. He proceeded to tell me they weren?t serious to him anyway and he just wanted sex which doesn?t exactly paint him in a good light to me. He admitted similarly lying to them to make them feel better supposedly. When I mentioned this he again said he just wanted to make me feel better and that was a lie too. Argh! Why can?t he just be honest?!
I think I suffer from retroactive jealousy so it?s hard for me to think about it because even thinking about his exes makes me feel anxious. I am aware that it may be naive to believe im the best. I also am aware that he doesn?t need to tell me about his past (I have had multiple exes and didn?t even know the names of their exes.... it?s not something I ask). But he did, without me asking, and he pretty much lied about everything in order to make me believe he liked me a lot.... which makes me wonder if it isn?t really true.
I guess my question is, should I be concerned at the extent of his lies? Or is it something I should try and get over given his lies relayed to the past and he?s with me now (and by and large treats me well)? I?m finding it difficult to believe anything he says given he just says what he thinks I want to hear.
By the way this has been going on for over a year now. I?ve given him plenty of chances to stop lying and be honest with me but he just keeps doing it. Hence why I?m posting. Because communicating did not make him stop.
tldr Boyfriend has lied extensively about his past. He claims this was just to make me feel wanted and special. But finding it hard to trust him.


Source.